Influenza, commonly known as the flu, is a highly contagious viral infection that primarily affects the upper respiratory system, including the nose, throat, and lungs. Unlike the stomach flu, which causes nausea, vomiting, and diarrhea, influenza leads to fever, chills, body aches, and respiratory symptoms such as coughing and congestion. While most people recover within a week, complications can arise, particularly in vulnerable groups.

The Centers for Disease Control and Prevention attributes this sudden increase to reduced exposure to the virus during the COVID-19 pandemic, leading to lower immunity among the population. Data from the CDC revealed that by the end of November, only 40% of adults in the United States had been vaccinated, thus exposing most of them to dangerous infections and complications. The flu season this year has been especially virulent for several reasons: people's immunity levels have not reached their peaks, circulation of viruses has been more frequent and the percentage of vaccination rates is relatively low.

How the Flu Spreads?

The flu is transmitted through tiny droplets expelled when an infected person coughs, sneezes, or talks. These droplets can land directly on another person's mouth or nose, leading to infection. Additionally, the virus can survive on surfaces like doorknobs, remote controls and keyboards for several hours. When a healthy individual touches these contaminated surfaces and then touches their face, they risk contracting the virus. Given its ease of transmission, the flu can spread rapidly in crowded environments such as schools, offices, and public transportation.

How Long Does the Flu Last?

Symptoms of flu persist for different times in different persons, depending upon their health and whether they had been vaccinated or not. However, the typical duration is within one to four days of contact and five to seven days later. Some will have a slightly milder reaction and illness when vaccinated. While others will get better sooner; others may remain ill for weeks. After disappearance of symptoms, there may also be fatigue which lasts for another few days.

Certain individuals are at a higher risk of developing severe flu-related complications, including pneumonia. These high-risk groups include:

• Infants and young children
• Adults aged 65 and older
• Pregnant individuals
• People with chronic medical conditions (e.g., asthma, diabetes, heart disease or HIV)
• Those with a body mass index (BMI) of 40 or higher

For these populations, the flu can escalate into life-threatening conditions making early intervention and prevention crucial.

How Long Is the Flu Contagious?

One of the most concerning aspects of influenza is its contagious period. According to the Centers for Disease Control and Prevention (CDC), individuals with the flu are most contagious during the first 3 days of their illness. However, the contagious period begins a day before symptoms appear and can extend up to seven days or more, depending on the severity of the illness.

An infected person can pass the flu a day before they even begin to feel symptoms.

The highest risk of transmitting the virus occurs between days two and four when symptoms are at their worst.

Even after symptoms have subsided, people may still be able to spread the flu for up to a week.

For instance, for those who have weakened immune systems or severe forms of the flu this contagious period can be significantly longer explaining why caution is needed when there is contact with other people.

Flu Prevention

Because flu is contagious, its prevention is one way of handling a reduction in infections. From simple to effective measures, the risk of infection can greatly be reduced:

1. Vaccination

The annual flu shot is the most effective way to protect against influenza. While it doesn’t guarantee complete immunity, it significantly reduces the risk of infection and severity of symptoms.

2. Stay Home When Sick

If you develop flu symptoms, staying home is the best way to prevent spreading the virus to others. Avoid close contact with household members, especially those at high risk for complications.

3. Practice Good Hygiene

• Wash hands frequently with soap and water for at least 20 seconds.
• Use hand sanitizer when soap is unavailable.
• Cover coughs and sneezes with a tissue or the inside of your elbow.
• Avoid touching your face, especially your mouth, nose and eyes.

4. Disinfect Surfaces

Regularly clean and disinfect frequently touched objects, including phones, countertops and doorknobs, to minimize the risk of contamination.

5. Wear Masks in Public Spaces

Wearing a mask, especially in crowded indoor environments can help reduce the spread of flu viruses, particularly during peak flu season.

When to See a Doctor

While most people recover from the flu without medical intervention, there are instances when professional care is necessary. Individuals at high risk for complications should consult a doctor at the first signs of illness. Antiviral medications like Tamiflu may be prescribed to shorten the duration and severity of symptoms.

Seek emergency medical care if you or a loved one experiences:

• Difficulty breathing or shortness of breath
• Chest pain or pressure
• Dizziness, confusion or difficulty waking up
• Bluish lips or face
• Severe muscle weakness
• Symptoms that worsen after initial improvement
• High fever (above 104°F)

The 20th-century modernist writer Virginia Woolf, in her book 'Mrs Dalloway', published in 1925, described her 52-year-old protagonist Clarissa Dalloway feeling “shriveled, aged, breastless”, during menopause.

Even after decades, the experience continues to remain widely relatable for scores of women worldwide.

In January this year, author Twinkle Khanna compared menopause to “a phone with a faulty charger.” Several other celebrities, namely Naomi Watts, Oprah Winfrey, Gwyneth Paltrow, and Angelina Jolie, have voiced out their concerns and frustration that women face during the transition.

Menopause is a natural transition in a woman’s life, typically occurring between the ages of 45 and 55. But for millions of women around the globe, its symptoms, which range from hot flashes to night sweats to mood changes and sleep variations, can wreak havoc, affecting professional life, relationships, and physical and mental health.

Hormone replacement therapy (HRT) can be the answer to help ease the symptoms, which are often misunderstood, under-discussed, and sometimes unnecessarily feared.

“Hormone Replacement Therapy (HRT) is an evidence-based option that helps restore hormonal balance during this transition. It is highly effective in relieving menopausal symptoms, improving quality of life,” Dr. Parjeet Kaur, Associate Director, Endocrinology & Diabetes, Medanta, Gurugram, told HealthandMe.

What Is Menopause?

Menopause marks the end of reproductive years for a woman. It occurs when a woman permanently stops menstruating.

Clinically, menopause is diagnosed after 12 consecutive months without a menstrual period.

Most women experience menopause between the ages of 45 and 55, though the transition -- called perimenopause -- can begin several years earlier.

During this time, the ovaries gradually produce less estrogen and progesterone, the hormones that regulate the menstrual cycle. This hormonal decline leads to a range of symptoms, which vary widely among women.

“Menopause is a natural part of biological ageing. It can also be due to medical or surgical procedures. Most women go into menopause between 45 and 55 years,” Dr. Shilpa Agarwal, Consultant Gynecology and Obstetrics and Fetal Medicine Expert, Jaslok Hospital and Research Centre, Mumbai.

“Menopause is caused by the loss of ovarian follicular function and, consequently, a decline in the circulating blood estrogen levels. Natural menopause is deemed to have occurred after 12 consecutive months without menstruation for which there is no other obvious physiological or pathological cause and in the absence of clinical intervention,” she added.

Common symptoms include:

• Hot flashes and night sweats
• Sleep disturbances
• Mood changes and irritability
• Vaginal dryness
• Reduced libido
• Difficulty concentrating
• Weight gain or metabolic changes

While some women experience only mild symptoms, others find that menopause significantly affects their quality of life.

More than the uncomfortable symptoms, the drop in estrogen levels raises a slew of health issues, mainly osteoporosis, heart disease, and sometimes metabolic disorders.

Although regular health checkups, balanced nutrition, and physical activity during midlife are essential to sail through, HRT can play a huge role.

What Is Hormone Replacement Therapy? How Can It Help?

Hormone replacement therapy consists mainly of female hormones, typically estrogen alone or a combination of estrogen and progesterone.

Former First Lady of the US, Michelle Obama, in her podcast in 2020, spoke candidly about her experience of hot flashes.

She described it as a "furnace turning on in her core", and a host of other issues after which she resorted to HRT to maintain her health and lifestyle during that transition.

“Hormone replacement therapy replenishes women with ovarian hormones. HRT typically combines estrogen and progesterone therapy. Progesterone is required in women with an intact uterus to prevent endometrial hyperplasia,” Dr. Agarwal said.

The medications primarily help in

• Reducing hot flashes and night sweats
• Improving sleep and mood
• Treating vaginal dryness and discomfort
• Importantly, HRT helps prevent bone loss and fractures.

Dr. Kaur said that HRT is highly effective in relieving menopausal symptoms, improving quality of life, and supporting bone health by reducing the risk of osteoporosis.

Notably, it can be used in several forms, including pills, skin patches, gels, sprays, and vaginal creams or rings.

Dr. Agarwal recommended that women start HRT within 10 years of menopause or before the age of 60 years".

The experts also advised women to keep monitoring for side effects during HRT.

For many women with moderate to severe menopausal symptoms, HRT can be highly effective.

Studies show that beyond hot flashes, improving sleep, and restoring vaginal health, hormone therapy also

leads to:

• a 25 percent to 50 percent reduction in fatal cardiovascular events,
• a 50 percent to 60 percent reduction in bone fractures,
• a 64 percent reduction in cognitive decline.

Are There Any Risks Involved?

Despite its benefits, HRT has been the subject of debate for decades. Safety concerns intensified after a major US study in the early 2000s linked certain types of hormone therapy to increased risks of breast cancer, blood clots, and stroke.

However, in 2025, the US FDA removed all misleading warnings on the therapy.

Current medical guidelines generally suggest that HRT is safest for healthy women under age 60 or within 10 years of menopause, when used at the lowest effective dose for symptom relief.

“Modern HRT, when carefully selected and monitored, is considered safe for many women. The key is individualized care -- a thoughtful discussion with your doctor can help determine the most suitable approach based on your health profile, age, and personal preferences,” Dr. Kaur said.

Still, HRT may not be advisable for women with a history of:

• Breast or endometrial cancer
• Blood clotting disorders
• Stroke or heart disease
• Certain liver diseases

For these women, non-hormonal treatments -- such as certain antidepressants, lifestyle changes, and alternative medications -- may help manage symptoms.

Menopause is a new phase of life -- and with the right information and guidance, it can be navigated confidently and comfortably, Dr. Kaur said.

Considered to be a key symbol of fertility and reproductive years, a woman's menstrual cycles are an integral and natural part of her life. However, they are more than just a monthly event, but instead a reflection of their hormonal, metabolic and even emotional health.

Due to genetics and other lifestyle factors, every woman experiences their cycle differently, which leaves many second-guessing about their hormonal balance, thyroid function, metabolic health, stress levels and even sleep quality.

Dr Archana Dhawan Bajaj, Gynaecologist and IVF Expert, Nurture exclusively tells Healthandme: "Knowing these patterns would guide people to understand when the changes are normal worry and when they are upheaval of a problem. Although the cycles vary among individuals, some features of such cycles are common between individuals, including the length of the cycle, flow, symptoms, as well as consistency, which are used to determine a normal state at various ages.

Here is what you should know and keep an eye out for during each phase:

The Early Years: Finding a Rhythm

Dr Maya PL Gade, Consultant, Gynaecology & Obstetrics at Kokilaben Hospital tells Healthandme: "In the first 2–3 years after menarche i.e. your first period, irregular cycles are common. Nearly 40–50 percent of adolescents do not ovulate consistently at first. The brain–ovarian hormonal axis is still maturing, so cycles may be longer than 35 days (than their typical 28 day monthly cycle) , bleeding may be heavy and cramps can feel intense.

Dr Rohan Palshetkar, Consultant IVF Specialist, Bloom IVF also warned that bleeding for more than 7–8 days continuously, soaking pads every 1–2 hours or going more than 90 days without a period may signal hormonal imbalance, clotting disorders, or conditions like PCOS.

He told Healthandme: "It is important to note that early teen cycles often happen without ovulation. For teenage girls, developing stable cycle will take some time due to ovaries adjusting to produce hormones. It is only in their late teens and early 20s that the girls will get the cycles more regular."

Normal Menstrual Cycle: According to Dr Bajaj, a normal cycle can be between 21 and 45 days. During bleeding, flow can be light, heavy, and cramps, mood swings, or even fatigue may accompany the adaptation of the organism to the hormonal changes.

Abnormal Menstrual Cycle: The expert explained: "Extensive bleeding, which needs the replacement of sanitary items every hour to two hours, long than seven or eight days, excruciating pain, or lack of periods in several months could be a sign of hormonal imbalance, thyroid complications, or polycystic ovarian syndrome."

20s and Early 30s: The Stable Phase

Talking about the post-teenager phase, Dr Gade said: "For many women, this is when cycles become more predictable, typically every 21–35 days, with 3–7 days of bleeding. Ovulation is more regular and PMS patterns are clearer. However, this is also the stage where lifestyle has a strong impact."

"Fertility is also at its peak in the 20s and early 30s, making it easy for women in this age group to become pregnant. With childbirth and breastfeeding, the chances of cycle alteration, its flow and length are high," Dr Palshetkar added.

Dr Gade also noted that high stress, poor sleep, intense exercise, crash dieting, thyroid disorders, or PCOS can disrupt ovulation and any sudden irregularity in this decade is often the body’s early warning system. A consistently painful period is also not “normal”, it may point to endometriosis or adenomyosis, both of which are frequently underdiagnosed,"

Keeping this in mind, it is essential for girls in their 20s and early 30s to track their period for regularity and flow, Dr Palshetkar advised.

Normal Menstrual Cycle: Dr Bajaj told this publication: "The average period to undergo a cycle is 21 to 35 days at an average of three to seven days with a moderate flow. The symptoms can be mild and include bloating, cramps or breast tenderness that can be easily treated."

Abnormal Menstrual Cycle: Talking about abnormal alterations, the gynaecologist said: "Excessive menstrual bleeding, cramps that impair normal life or inter-menstrual bleeding may be some of the early signs of endometriosis, fibroids, hormonal disruption or chronic stress."

Late 30s to 40s: The Hormonal Transition

Dr Gade explained: "Fertility begins to decline gradually after 35 due to reduced ovarian reserve. Cycles may shorten initially because ovulation happens slightly earlier. As women move into perimenopause, a transition that can last 4–8 years, hormone levels fluctuate unpredictably. Estrogen doesn’t simply drop; it rises and falls unevenly.

"This explains why many women notice heavier bleeding, clotting, worsening PMS, new-onset anxiety, sleep disturbances or cycles that skip months and then return. Studies suggest that up to 90 percent of women experience noticeable cycle changes during this phase.

"Importantly, very heavy bleeding at this stage should not be ignored. It can sometimes be linked to fibroids, endometrial thickening, or other structural changes in the uterus."

Moreover, Dr Palshetkar also warned: "For some, there is a noticeable and increasing gap between periods before menopause. Fertility decline is a reality in the age group, though it is not impossible to get pregnant.

Normal Menstrual Cycle: Dr Bajaj elaborated to Healthandme: "The hormonal shifts at this age may make the cycles a bit shorter or longer. Flow can either become thicker or thinner and premenstrual symptoms can be more pronounced as the body slowly transitions into perimenopause."

Abnormal Menstrual Cycle: Additionally, she said: "Very heavy bleeding, very prolonged intervals between the periods, bleeding following intercourse or sudden spotting between menstruation may be considered an issue, as these can be indicators of hormonal disorders, the presence of fibroids, or other gynecological problems."

Menopause: A New Baseline

Ultimately, Dr Gade detailed: "Menopause is diagnosed after 12 consecutive months without a period, with the average age globally around 50–51 years. Hormone levels stabilize at lower levels, and while periods stop, symptoms like hot flashes, vaginal dryness, bone density changes, and metabolic shifts may appear."

"Post-menopause, a woman’s reproductive health sees a significant decline of estrogen levels, fertility, and inability to produce any eggs. However, it still sees noticeable hormonal fluctuations and resultant health troubles.

"Facing PMS-like symptoms like mood swings and irritability is not uncommon. Medical attention is required when women notice severe pain or very heavy bleeding at

any age after menopause.

"The changes and evolution in the menstrual cycles are proof of her complete health during the course of the life she lives. And it impacts the way she lives or can live through her lifetime," Dr Palshetkar added.

Normal Menstrual Cycle: Lastly, Dr Bajaj said: "Prior to menopause, the cycles can become irregular since of the hormonal fluctuations and some symptoms like hot flushes, sleeping problems or mood swings can appear."

Abnormal Menstrual Cycle: While she noted that slight spotting is possible post-menopause due to fluctuations in estrogen and progesterone levels, the expert advised: "Post-menopausal vaginal bleeding is regarded as abnormal and needs to be medically examined because it may be due to underlying health conditions that must be addressed."

Hailey Bieber recently opened up about a mini stroke or Transient Ischemic Attack (TIA) she experienced when she was just 25. In an episode of the SHE MD podcast, hosted by Mary Alice Haney and Dr. Aliabadi, Hailey discussed how the mini stroke actually led her to find out an even bigger issue in her heart.

Dr. Aliabadi, a world-renowned OBGYN based in Los Angeles, who is also Hailey’s doctor, explained that this ordeal led Hailey’s medical team to discover a PFO, also known as a hole in her heart

In the interview, the founder of Rhode Beauty detailed how she had the classic stroke symptoms and said: “[My] whole right side of my arm went numb. I couldn't speak. Like my words were coming out all jumbled. The right side of my face was drooping. It was like a classic stroke symptom”

She explained that the reason why her team called it a mini stroke is because it ended within 31 minutes. By the time she reached the hospital, she didn’t need any clot busting medicine or procedure.

What Caused Hailey Bieber’s Mini Stroke?

Dr. Aliabadi explained that Patent Foramen Ovale (PFO) is extremely common phenomenon and a majority of people go through life never knowing they have it.

The Cleveland Clinic explains that the PFO is a small flap or opening between the upper chambers of your heart that everyone has. However, it usually closes up before the age of three. Most of the time, a PFO doesn’t cause symptoms and would not need treatment; however, in rare cases, it could lead to a stroke and or a TIA.

How Was Hailey’s Heart Condition Diagnosed

Hailey explained that her heart is slightly tilted in her chest and standard echocardiogram couldn't see the opening at first which led ER doctors to be unable to detect it.

As a result, she had to see a specialist for a Transcranial Doppler test. Doctors listened to the sound of blood "shunting" (moving the wrong way) through her heart to finally confirm the hole was there, which was much larger than they expected.

Also Read: Women Heart Symptoms Could Differ From Men, Explains Expert

What Is Transcranial Doppler Test?

According to the Cleveland Clinic, it is an ultrasound test that uses sound waves to detect conditions that affect blood flow to and within your brain. It can detect strokes caused by blood clots, narrowed sections of blood vessels, and numerous other heart-related issues.

How Did They Fix Hailey Bieber’s Heart?

Instead of an open-heart surgery, doctors performed a modern, minimally invasive procedure on Hailey's heart. She detailed the procedure where the doctors reached her heart through a vein in her groin. They threaded a tiny "button" made of metal and Teflon up to her heart and used it to securely plug the hole.

Hailey also learned she has some genetic factors that put her at a higher risk for blood clots and inflammation. Despite suffering a life-altering stroke, she views it as a "blessing in disguise" as it led her to find these issues early.

Now, she manages her health through a clean lifestyle, focusing on sleep, exercise and keeping her heart inflammation low.