Human Biology – Page 17

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…

deka September 2, 2025

Human Biology Smart & Healthy

Hormones in the Human Body

Hormones are chemical messengers that regulate nearly every function in the human body. They are produced by glands of the endocrine system and travel through the bloodstream, delivering instructions to…

deka August 29, 2025

Human 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…

deka August 27, 2025

Human 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,…

deka August 27, 2025

Human 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…

deka August 27, 2025

Human 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…

deka August 26, 2025

Healthy Lifestyle Human Biology Public Health

How the Liver Works and How to Keep It Healthy

The liver is one of the most vital organs in the human body. It performs more than 500 different functions, making it essential for survival. From filtering toxins to producing…

deka August 26, 2025

Human Biology Smart & Healthy

The Influence of Hormones on Appetite

Appetite is not controlled by willpower alone—it is strongly regulated by hormones, the body’s chemical messengers. These substances send signals between the brain, stomach, fat tissue, and other organs, determining…

deka August 22, 2025

Danger Human Biology Public Health

What Happens to the Body When Smoking

Smoking is one of the most harmful habits for human health, affecting almost every organ in the body. Cigarette smoke contains more than 7,000 chemicals, many of which are toxic…

deka August 22, 2025

Human Biology Public Health

How Alcohol Destroys Neurons

Alcohol is one of the most widely consumed psychoactive substances, but its effects on the brain are among the most harmful. While moderate drinking may seem harmless, excessive or chronic…

deka August 22, 2025