Even restaurants with top health grades can host invisible germs that could make you sick. From menus to condiment bottles, certain spots are more prone to contamination than others. Here’s what to watch out for during your next meal out—and how to protect yourself.

Menus: A Common Culprit

Menus are one of the first things you touch at a restaurant—and also one of the most germ-laden. Research shows they often carry traces of bacteria like E. coli and Staphylococcus aureus due to frequent handling. It is also because so many people visit the restaurants and touch the same menu. The plastic on it also absorbs the moisture from people's hands.

Plastic menus, in particular, can be germ magnets. Unlike paper, plastic doesn’t absorb moisture, allowing bacteria to thrive if the surface becomes damp. To stay safe, wash your hands after handling menus and avoid touching your face or food until you do.

Touch Screens: Convenient But Risky

Self-ordering kiosks and touch screens offer convenience, but they’re also hotbeds for bacteria. A study in London found traces of Enterococcus faecalis (linked to infections) and staph on some restaurant touchscreens.

If you’re wary of germs, consider skipping the kiosk and ordering at the counter instead—especially if it’s less busy.

Ice: Looks Clean, But Is It?

It may surprise you, but ice can harbor bacteria too. Although studies found bacteria in ice from restaurants, the levels typically weren’t high enough to cause illness. Still, lab experiments show that most drinks—except whiskey—can let bacteria from ice survive.

To be cautious, avoid drinks with ice if you're particularly sensitive or have a weakened immune system.

Lemon Wedges: Pretty, But Potentially Dirty

That slice of lemon on your drink could be carrying more than just tangy flavor. In one study, nearly 70% of lemon wedges tested contained microorganisms—some with dozens of them.

Healthy stomachs usually fend off these germs, but those with chronic conditions like diabetes, kidney disease, or compromised immunity should be extra careful. Watch to see if your server uses gloves or tongs to handle garnishes.

Buffets and Salad Bars: Shared Space, Shared Germs

Buffets and salad bars invite a lot of hands and airborne particles. People may cough or sneeze near the food or reuse utensils between dishes, spreading germs unknowingly.

To minimize risks:

• Always grab a new plate for seconds.
• Avoid touching serving utensils to different foods.
• Make sure hot food is kept hot and cold food is chilled.
• Look for sneeze guards and don’t eat in line.

Cafeteria Trays: Dirtier Than You Think

Trays used to carry food can be surprisingly dirty. One study found they often have more bacteria than even gym mats or bathroom surfaces. That’s because trays aren’t always cleaned between uses. Using a napkin as a barrier or cleaning your tray with a sanitizing wipe can help.

Condiments: Handle With Caution

Ketchup bottles, salt shakers, and pepper mills pass through many hands—and may carry bacteria like E. coli or coliform. If you have hand sanitizer or a disinfectant wipe, use it before handling these items, especially if you’re about to eat finger foods.

Table Surfaces: Wiped, But Not Always Clean

Even if your server wipes the table, it doesn’t guarantee cleanliness. If the same cloth is used repeatedly without disinfection, it can actually spread bacteria. A quick hand sanitizing or using a placemat can provide some extra protection.

Stay Aware, Stay Healthy

Dining out should be enjoyable—and it can be, if you're aware of these hidden risks. A few simple precautions like hand-washing and watching how food is handled can go a long way in keeping germs at bay.

In the world full of people who are on their quest to defy aging like Bryan Johnson, we have another on the list, a 41-year-old doctor from London, Dr Mohammed Enayat. While speaking to Business Insider, the doctor, who is also the founder of the Hum2n longevity clinic said that tests which were taken some 18 months back indicated that his biological age was 24.

He has devoted his life to longevity which he says could be achieved through comprehensive routine that includes readily accessible supplements. While there is no universal test that measures one's biological age, Dr Enayat says that he used GlycanAge and TruAge PACE tests. These tests measure the chronic inflammation and then determine one's biological age.

What Works In Anti Aging?

Dr Enayat shared that he had been monitoring his health closely form the last seven years. He is also using wearable technology like an Oura ring, which is a smart ring that is used to track sleep and physical activities. He also recommended using fitness device which can help one monitor the physiological data, which includes heart rate, respiratory rate and resting heart rate, for this, he used a Whoop strap.

He had also been regular with his full body tests which included regular blood, urine, and microbiome tests. What has helped him is also his regular intake of supplements, which he has consistently taken and considers them as his "core".

"While I believe these supplements have supported my biological age reversal, I credit them as one component in a much broader framework," he told to Business Insider.

What Supplements Does The Doctor Use To Reverse His Age?

Dr Enayat shares a list of supplements that he uses in his journey to reverse his biological age. The first one on his list is vitamin B and folate supplement. He shares that he consumes it due to its "methylation gene defect". It causes high, pro-inflammatory homocysteine levels and in order to bring it down, he has to be on a good B complex and a folate supplement.

He also emphasized on the magnesium supplement. He revealed that his natural levels are already below the recommended levels, due to his dietary intake. In order to compensate that, he opts for magnesium bisglycinate, which is a form better known for absorption. "It works really well to bring my levels up," he shares.

Furthermore, magnesium is also beneficial for bone health, blood sugar regulation, and muscle function. They are also found in foods like legumes and leafy greens.

Lastly, he credits his age reversal to omega-3 fatty acid supplements. He reveals that even in this parameter, his natural levels are low.

Omega-3 fatty acids are present in fish and chia seeds. They have been linked with an improved heart health, reduced inflammation, and lower blood pressure.

In fact, in a recent study, published in Nature Aging, which involved 777 participant, it was revealed that daily gram consumption of omega-3 fatty acid was in fact, associated with lower "biological ages".

A team of researchers has discovered a group of brain cells responsible for creating “meal memories” — a finding that could explain why people often overeat after forgetting a recent meal. Published in Nature Communications, the study reveals how these neurons not only store information about what was eaten but also when it was consumed. The research, conducted on laboratory rats, may offer new insights into eating disorders, memory loss, and even distracted eating habits.

The Brain’s Food Log: What Are Meal Engrams?

Scientists observed that while eating, a specific set of neurons in the ventral hippocampus became active. These neurons formed what researchers are calling meal engrams — memory traces that preserve the details of eating experiences, including the place and time a meal occurred.

“Meal engrams function like biological databases,” explained Scott Kanoski, senior author of the study and professor at USC Dornsife. “They help the brain log not just the food, but the full context of the meal.”

Engrams have long been known to store different types of memories. This study is the first to identify engrams tied specifically to eating.

Why This Matters: Overeating and Memory Loss

The findings could help explain why individuals with memory impairments — such as those with dementia or brain injuries — may eat multiple meals in a short span of time. If the brain cannot properly recall a recent meal, it may mistakenly interpret hunger signals and prompt overeating.

Disordered eating can also be triggered by distracted eating. Whether it’s watching TV or scrolling on a phone, these distractions may interfere with how effectively the brain forms meal memories. According to lead author Lea Decarie-Spain, these interruptions weaken or prevent the creation of complete meal engrams. Without these memory markers, the brain may fail to recognize that a meal has already been consumed.

How the Brain Records a Meal

The study showed that rats formed meal memories during short pauses between bites — moments when their brains naturally surveyed the environment. These pauses are key to integrating various streams of information such as time, place, and sensory details. When attention is disrupted during these pauses, memory formation suffers.

Using advanced neuroscience tools, researchers monitored brain activity in real-time as the rats ate. When the meal memory neurons were destroyed, the rats forgot where food was located but could still perform non-food-related memory tasks. This suggests that these neurons are uniquely dedicated to processing meal-related memories.

Further analysis showed that these neurons communicate with the lateral hypothalamus, a brain area crucial for regulating hunger. When this link was blocked, rats overate and could not remember meal details — further proving the importance of this memory mechanism.

A New Angle on Obesity Treatment

Kanoski believes this research opens new avenues for managing obesity and disordered eating. While current approaches largely focus on calorie restriction and exercise, strengthening meal memory formation could become an equally important strategy.

“Remembering what and when you ate could be just as vital as making healthy food choices,” he said.

In a world filled with distractions, this study underscores the power of mindful eating — not just for the sake of enjoyment, but for better memory, appetite control, and long-term health.

Herbs and spices are important parts of our diet. Used to enhance the taste and aroma of the food, these spices can be used in various ways. However, is the incredible taste and strong aroma the only benefits you get from herbs? There are many benefits to them as well, whether it is making our immunity strong, warding off cold or other infections as well as keeping our brain health strong!

Two herbs you probably have in your kitchen, rosemary and sage, might be surprisingly good for your health. New research published in the journal Antioxidants suggests these everyday plants could help improve your memory and even protect your brain from serious problems like dementia, a condition that affects memory and thinking.

Power of Carnosic Acid

Research shows that a special substance found in both rosemary and sage, called carnosic acid, could lower your chance of getting Alzheimer's disease. Carnosic acid is a strong "antioxidant" (which fights off harmful things in your body) and "anti-inflammatory" (which reduces swelling and irritation). This means it helps protect your brain cells from damage, like the kind of damage that leads to Alzheimer's.

New Hope for Alzheimer's Treatment

In a recent study published in the journal Antioxidants, scientists created a new, more stable version of carnosic acid called diAcCA. Early tests in labs showed that this new compound helped improve memory, increased the number of connections between brain cells, and reduced harmful proteins (like amyloid-beta and tau) that are linked to Alzheimer's disease.

Scientists are hopeful that they can soon test diAcCA on humans. What's especially exciting is that diAcCA only becomes active in parts of the brain that are inflamed (swollen), which could mean fewer side effects. So far, studies in mice have shown no signs of harm and big improvements in how their brains work. Researchers also believe diAcCA might help treat other conditions that involve inflammation, such as type 2 diabetes, heart problems, and Parkinson's disease.

Other Brain-Boosting Compounds

Besides carnosic acid, rosemary and sage contain another helpful substance called 1,8-cineole. This compound helps stop the breakdown of acetylcholine, which is a brain chemical that is very important for learning and memory. By protecting acetylcholine, rosemary might help keep our brains sharp as we get older. Plus, rosemary is full of antioxidants that protect brain cells from damage caused by something called "oxidative stress," which is a big reason why our thinking skills can decline.

Even just smelling rosemary might help your memory! A 2016 study from Northumbria University found that people who were in a room that smelled like rosemary had better memory. In this study, older adults in a rosemary-scented room did much better on memory tests compared to those in a room with no smell, scoring 15% higher. They also felt more awake.

General Tips for Dementia Prevention

The NHS (National Health Service) in the UK gives general advice on how to lower your risk of dementia:

• Eat a healthy, balanced diet with lots of fruits, vegetables, and whole grains.
• Get at least 150 minutes of exercise (about 2.5 hours) every week. This means doing things like brisk walking, cycling, or swimming.
• Keep a healthy weight.
• Stop smoking if you do.
• Cut back on alcohol.
• Keep your blood pressure at a healthy level.
• Stay socially active, meaning keep connecting with friends and family.