Who hasn't ever forgotten a friend's name, lost their glasses, or had trouble remembering a word that was just "on the tip of the tongue"? These little memory blips are normal, particularly with age. But with increasing awareness about dementia and cognitive decline, even occasional forgetfulness can raise alarm. Is it just aging or something worse?

Though periodic memory loss is a natural aspect of aging, distinguishing it from the onset of dementia is important to ensure early intervention. Here's a closer examination of when forgetfulness is harmless—and when it might require medical attention.

What are Normal Age-Related Memory Changes?

Aging brings natural changes to our bodies and brains. Known as age-associated memory impairment, these changes are mild and don’t interfere with day-to-day function. According to the World Health Organization (WHO), healthy aging is about maintaining functional ability and well-being even as biological changes occur.

With normal aging:

• You may occasionally forget names or appointments, but remember them later.
• Multitasking becomes harder, and it may take longer to learn new things.
• Concentration can decline, particularly in distracting settings.

These changes are generally more irritating than distressing. Most importantly, most elderly persons maintain independence, functional memory, and the capacity for engaging in meaningful activities.

What are Dementia-Related Memory Changes?

Dementia is not a normal aspect of aging. It is a medical illness that includes a gradual loss of memory, thinking, behavior, and the capacity to carry out daily activities. Alzheimer's disease is the most prevalent type, but there are numerous others—such as vascular dementia, Lewy body dementia, and frontotemporal disorders.

The main differences between aging and dementia:

• In typical aging, you might forget some aspect of an experience. With dementia, whole experiences are forgotten.
• Dementia entails persistent, deteriorating problems with communication, decision-making, orientation, and even personality.
• Healthy older adults are usually conscious of their forgetfulness, but individuals with dementia may not have insight into their own deterioration.

Signs Your Forgetfulness May Be More Than Aging

Some indicators transcend normal memory slips and might signal an underlying cognitive disorder. Let's examine the most revealing differences:

1. Memory Changes

Normal: Occasionally forget names or appointments.

Concerning: Forget recent things, repeat oneself, or get lost in familiar settings.

2. Language Challenges

Normal: Struggle briefly to name something.

Concerning: Often lose train of thought, use wrong words, or have trouble keeping up.

3. Problem Solving & Decision Making

Normal: Need more time to make decisions.

Concerning: Struggle to manage finances, prepare meals, or organize activities previously done easily.

4. Decline in Independence

Normal: Continue with home maintenance and personal care.

Concerning: Need assistance with dressing, bathing, medication, or bill payment.

5. Disorientation

Normal: Remember occasionally where you placed something or the date.

Concerning: Disoriented about place, time of day, or season.

6. Personality & Mood Changes

Normal: Minimal mood shifts in reaction to life events.

Concerning: Unusual irritability, paranoia, or avoiding social activities.

7. Social Withdrawal

Normal: Prefer solitude at times.

Concerning: Refuse interaction because you are confused or cannot keep up with conversation.

8. Lack of Awareness

Normal: Acknowledge your forgetfulness and learn how to make up for it.

Concerning: Deny or are unaware of decline even when pointed out by others.

9. Progressive Pattern

Normal: Changes are not frequent and don't progress quickly.

Concerning: Symptoms become worse—from intermittent lapses to persistent confusion and dysfunction.

Other Causes of Memory Loss You Ought Not to Ignore

All memory issues aren't due to dementia. Some reversible or treatable conditions cause similar symptoms:

• Nutritional deficiencies (e.g., vitamin B12)
• Thyroid or liver dysfunction
• Side effects of medications
• Chronic depression, anxiety, or stress
• Untreated sleep apnea or insomnia
• Head injury or concussion
• Alcohol or drug abuse
• Infections or tumors of the brain

A full assessment by a medical provider is necessary to ascertain the cause.

What Is Mild Cognitive Impairment (MCI)?

Mild Cognitive Impairment occupies the place between normal aging and dementia. People with MCI have observable memory or thought problems that surpass typical age-related decline—but are still capable of independent living. MCI will either stay the same, or in some cases, will worsen to Alzheimer's disease.

Things You Can Do to Help Brain Health

If you or the person you care about is undergoing cognitive changes, these measures will assist in sustaining function and quality of life:

Maintain routines: Regular daily routines aid in memory and minimizing confusion.

Organize yourself: Use notes, calendars, or cell phone reminders.

Challenge your mind: Read, play puzzles, or take up a new hobby.

Stay connected socially: Social isolation may worsen cognitive decline.

Physical exercise: Regular exercise increases blood flow to the brain.

Prioritize nutrition: Consume a well-balanced diet that includes plenty of vegetables, omega-3s, and antioxidants.

Get quality sleep: 7–9 hours at night.

Manage chronic conditions: Maintain diabetes, hypertension, and cholesterol control.

When to See a Doctor?

If memory issues begin affecting your or a loved one's day-to-day activities, it's time to seek help. Signs include:

• Getting lost in familiar areas
• Having trouble with personal care
• Repeating stories or asking the same questions
• Having trouble managing money or medications

Don't jump to conclusions but don't wait. A timely diagnosis provides for more effective planning, care, and in some instances, treatment which can halt progression.

Aging has its own unique changes, yet not all forgetfulness indicates an urgent issue. Nevertheless, knowledge and initiative make a world of difference. Educate yourself about the signs, pay attention to your body and never be afraid to consult professionals. Caught early, most factors behind memory problems can be solved, allowing you or your loved one the utmost opportunity for a healthy, well-lived life.

Bengaluru based neurosurgeon Dr Arun L Naik dropped a video on his Instagram account @doclogues, which has shocked the world, because he says that 'Dementia Starts in Your Legs'.

As of now, most of us knew that it is a general term for a loss of thinking, and is part of normal aging and related to brain diseases that damage the nerve cell. However, Dr Naik notes that as per a 2020 study, it was found that those who walk in a slow speed, especially older adults, were more likely to face the risk of cognitive decline. "Why?" To this, Dr Naik writes that walking is not just a physical task, "it is a full brain workout".

How Is Walking Related To Brain Health? Can Lack Of It Cause Dementia?

Dr Naik writes that there exists a brain-leg connection. "Every step involves coordination between the frontal lobe, cerebellum, spinal cord, and proprioceptive feedback loops."

The second point he notes is of the circulation boost. He writes that leg movement improves blood flow to the brain, and it delivers oxygen, glucose, and clears out toxins.

Then comes gait changes, which the doctor says must be considered as brain warning. It is brain's way to tell that changes in walking style, balance, or pace could proceed to memory symptoms by years.

Lastly, he notes is the neuroplasticity in motion. He says that walking stimulates the brain-derived neurotrophic factor, which strengthens neuron connections. This is why, "weak legs can speed up cognitive decline," he says in his video.

What Study Is The Doctor Quoting When He Says That Dementia Starts From Leg?

The study is a 2020 review, which was published in the Journal of Aging Research. This is where it was seen that older adults, who stay physically active are less likely to develop cognitive decline or dementia. The study analyzed over 1,60,000 people and found that regular exercise reduced the risk of dementia by 28 per cent and Alzheimer's disease by 45 per cent.

With aging, especially from mid-50s, most adults begin to lose 1 to 2 per cent of muscle mass every year, this process is further accelerated by inactivity. This loss then not only affects mobility, but also metabolism and blood circulation, which results in less oxygen reaching to your brain, as the doctor also explained.

This is why the doctor says, "if your legs slow down, your brain may follow".

Can Something Be Done To Prevent Dementia?

The answer is yes. Dr Naik also says, "studies have shown that it is never too late to start. Starting even in your 60s can reduce dementia risk by a mile". So, what is he asking people to start? He is urging people to start some activity, to help their bodies move, and enable the brain to leg coordination.

The doctor also notes some "strategies" to prevent dementia in the caption of his post through movements, which are as followed:

• Walk 30 minutes daily at a brisk pace.
• Add balance exercises like tandem walking and single-leg stands.
• Practice dual-task walking (e.g. walking while talking or solving a simple mental task).
• Include strength training for lower limbs—muscle is cognitive insurance.
• Avoid long periods of sitting—movement every hour keeps memory sharp.

If you are someone who cracks your knuckles every day just for that oddly satisfying pop, you are not alone. For many, the sharp sound brings a fleeting sense of relief or relaxation. Yet, there has long been a debate about whether this seemingly harmless habit could actually damage your joints or raise the risk of arthritis.

For those unversed, the pop you hear when cracking your knuckles comes from gas bubbles in the joint fluid collapsing. For most people, it’s harmless, though it can occasionally cause slight swelling or a temporary drop in grip strength. The long-standing belief that it leads to arthritis is not backed by science, but using too much force could result in minor injuries, like ligament sprains or dislocations

Addressing this common worry, orthopedic surgeon Dr. Manan Vora answered the question in a viral reel that has now surpassed 2.5 million views. A viewer asked him, “Can cracking knuckles every day lead to arthritis?”

Dr. Vora said, “The pop you hear when cracking a knuckle is the sound of these bubbles bursting within the synovial fluid inside the joint,” he clarified.

Is Cracking Knuckles Bad For You?

Knuckle cracking is a habit many pick up early in life, often because they enjoy the sound or the temporary feeling of looseness in the fingers. According to the Johns Hopkins Arthritis Center, the sound comes from changes inside the joint capsule, which is filled with synovial fluid. This fluid not only lubricates the joints but also nourishes the surrounding bones.

“A variety of gases are dissolved in this fluid. When a knuckle is cracked, stretching the capsule lowers the pressure inside, creating a vacuum. The dissolved gases form a bubble, which bursts, producing the familiar popping sound. It takes time for the gases to re-dissolve, which is why you can’t immediately crack the same knuckle again,” Johns Hopkins adds.

Does Cracking Knuckles Cause Arthritis?

Many worry that frequent knuckle cracking could trigger arthritis. However, research shows there is no evidence linking the habit to arthritis or long-term joint damage. A few reports have noted that excessive cracking may occasionally cause minor ligament strains or tendon dislocations, but these injuries typically heal on their own.

Some studies also suggest that habitual knuckle crackers might have slightly reduced grip strength over time, but this does not equate to arthritis. Rarely, “knuckle pads” can develop in young people who crack their knuckles often, but these are mostly cosmetic.

Several studies back up the conclusion that knuckle cracking does not cause arthritis. For example, a study by the Uniformed Services University of the Health Sciences followed 215 participants, 20% of whom regularly cracked their knuckles. They found arthritis in 18.1% of knuckle crackers and 21.5% of non-crackers, essentially the same rate, showing no link between the habit and the disease.

A famous anecdote comes from Dr. Donald Unger, who cracked the knuckles on his left hand twice daily for 50 years while leaving his right hand untouched. Published in Arthritis and Rheumatism in 1998, the informal experiment revealed that neither hand showed signs of arthritis. More recent studies in 2017 reached similar results, finding no difference in hand function between people who cracked their knuckles and those who didn’t.

What Is Arthritis?

Arthritis is a condition that causes inflammation and pain in one or more joints, often leading to stiffness and limiting the joint’s range of motion. Genetics play a major role, with environmental triggers contributing to inflammatory types, and age or mechanical stress driving degenerative arthritis.

Other risk factors include obesity, previous joint injuries, family history, older age, and being female. But as research confirms, knuckle cracking is not one of them.

A symptom that most people associate with a common cold could actually indicate long Covid. Typically, individuals recover from a coronavirus infection within a few weeks after symptoms begin. However, NHS guidance points out that some people can develop a more persistent illness, with symptoms lasting far longer.

Long Covid, also called post-COVID syndrome, is usually diagnosed when COVID-19 symptoms persist for more than 12 weeks. Keep reading to learn which common symptom might actually be a sign of long Covid.

One Nose Symptom That Can Also Be Long Covid

Long Covid symptoms can vary widely, and many may be mistaken for a regular cold or flu. For instance, a sore throat or a runny nose could suggest either a common cold or long Covid, depending on how long the symptom has been present.

What Are Common Symptoms Of Long Covid

Other symptoms may include:

• Memory or concentration difficulties, often referred to as brain fog
• Shortness of breath
• Joint aches and muscle pain
• Extreme fatigue
• Hair loss or skin rashes such as hives
• Nasal congestion or a runny nose
• Headaches, dizziness, or vertigo
• Pins and needles or widespread body aches
• Persistent cough
• Abdominal pain or diarrhoea
• Nausea, vomiting, weight loss, and reduced appetite
• Trouble sleeping (insomnia)
• Elevated temperature
• Changes in senses, including vision issues, earaches, tinnitus, or altered taste and smell
• Anxiety and depression
• Sore throat
• Sudden confusion (delirium), especially in older adults
• Chest pain or tightness, and noticeable heart palpitations

How To Know If You Have Long Covid Or Common Cold?

Telling the difference between a common cold and COVID-19 can be tricky, as many symptoms overlap. You can look for clues such as when the symptoms started, the intensity of fatigue, and whether you have experienced loss of taste or smell, a hallmark of earlier COVID variants. The only way to be sure is to take a COVID-19 test.

Long Covid stands apart from both a cold and acute COVID-19 because its symptoms, like fatigue, shortness of breath, and cognitive difficulties, persist for weeks or months after the initial infection.

Long Covid Complications

Some people, particularly those who had severe COVID-19, may experience effects on multiple organs or develop autoimmune conditions lasting weeks, months, or even years. These multi-organ effects can involve the heart, lungs, kidneys, skin, and brain. Many of these complications share symptoms with commonly reported long Covid issues. Consequently, people who have had COVID-19 may be at higher risk of developing or worsening conditions such as:

• Diabetes
• Heart problems
• Blood clots
• Neurological disorders

If you suspect you have long Covid, your GP may run several tests to rule out other causes of your symptoms, including blood tests. They might also monitor your heart rate and oxygen levels.

In some cases, further investigations such as an ECG or X-ray may be required. Some patients may be referred to a team of specialists at a post-COVID syndrome clinic for comprehensive evaluation.