What Is Ultrasound (US) and How Often Should It Be Done?
Ultrasound (US), also known as sonography, is a medical imaging technique that uses high-frequency sound waves to create pictures of the inside of the body. Unlike X-rays or CT scans,…
How to Provide First Aid to an Injured Person
First aid is the immediate care given to someone who is injured or suddenly ill before professional medical help arrives. Quick and correct actions can save lives, reduce complications, and…
Posted inBiohacking Healthy Lifestyle Human Biology
How Food Affects Gut Microflora
The human digestive system is home to trillions of microorganisms, collectively known as the gut microflora or gut microbiota. These bacteria, fungi, and other microbes play a vital role in…
Posted inDanger Public Health
Why Chronic Sleep Deprivation Is Dangerous
Sleep is essential for physical recovery, mental clarity, and overall well-being. While occasional lack of sleep may cause short-term tiredness, chronic sleep deprivation—consistently getting less sleep than the body needs—can…
Posted inBiohacking Healthy Lifestyle Public Health
Healthy Lifestyle: What It Is and How to Start
A healthy lifestyle is a way of living that helps maintain and improve overall health and well-being. It is not limited to diet or exercise alone, but rather a balanced…
How the Brain Reacts to Physical Exercise
Physical activity benefits not only the body but also the brain. When we exercise, our nervous system, hormones, and blood flow change in ways that directly affect mood, memory, and…
Posted inHuman Biology Public Health Smart & Healthy
How the Body Reacts to Cold
When exposed to cold temperatures, the human body activates several defense mechanisms to maintain its core temperature around 36.5–37.5°C. These reactions are controlled by the hypothalamus, the part of the…
Posted inHuman Biology Public Health Smart & Healthy
How Food Affects Mood
The food we eat influences not only physical health but also emotional well-being. Scientists have discovered strong links between diet and mood through the way nutrients affect brain chemistry, hormones,…
Posted inHuman Biology Public Health Smart & Healthy
Cholesterol: What It Is and Why It Matters
Cholesterol is a fatty, wax-like substance that is naturally produced in the liver and also obtained from certain foods. Despite its negative reputation, cholesterol plays essential roles in the human…
Posted inHuman Biology Public Health Smart & Healthy
What Happens to the Body During Obesity
Obesity is a condition where excessive body fat accumulates to the point that it negatively affects health. It develops when energy intake (food and drink) regularly exceeds energy expenditure (physical…