Human Biology – Page 12

How the Brain Works

The human brain is one of the most complex and fascinating organs in the body. It controls every thought, emotion, movement, and bodily function—often without us even realizing it. Despite…

deka August 4, 2025

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Circadian Rhythms: The Body’s Internal Clock

Circadian rhythms are natural, internal processes that regulate the sleep-wake cycle and repeat roughly every 24 hours. These biological rhythms are found in almost all living organisms, including humans, animals,…

deka July 31, 2025

Human Biology Public Health Smart & Healthy

The Role of Collagen in the Human Body

Collagen is the most abundant structural protein in the human body, comprising nearly 30% of total protein content. It forms a vital part of connective tissues, including skin, cartilage, bones,…

deka July 27, 2025

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Metabolism: How to Stimulate Your Body’s Energy System

Metabolism is a set of chemical processes in the body that convert food into energy to support life-sustaining functions. This includes breathing, circulation, temperature regulation, and cellular repair. The basal…

deka July 27, 2025

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What Are Biological Rhythms and How to Align With Them

Biological rhythms, also known as biorhythms, are natural, internal cycles that regulate the timing of physiological and behavioral processes. These rhythms help the body coordinate sleep, hormone release, digestion, and…

deka July 27, 2025

Human Biology Stress Management

How Sleep Affects the Functioning of Internal Organs

Sleep is not merely a state of rest—it is a complex biological process essential for maintaining the health of internal organs and physiological systems. During sleep, the body performs critical…

deka July 26, 2025

Human Biology Smart & Healthy

How Ultraviolet Radiation Affects the Skin

Ultraviolet (UV) radiation from the sun is one of the most significant environmental factors that affect human skin. While moderate exposure to sunlight is necessary for vitamin D synthesis, excessive…

deka July 26, 2025

Human Biology Smart & Healthy

The Happiness Hormones: Dopamine, Serotonin, and Endorphins

Feelings of happiness, motivation, and emotional well-being are deeply connected to chemical messengers in the brain called neurotransmitters. Among these, dopamine, serotonin, and endorphins are often referred to as the…

deka July 26, 2025

Human Biology Public Health

Liver Diseases: Prevention and Treatment

The liver is one of the body’s most vital organs, responsible for filtering toxins, producing digestive enzymes, storing nutrients, and supporting the immune system. When the liver becomes damaged, it…

deka July 22, 2025

Human Biology Smart & Healthy

What Are Autoimmune Diseases?

Autoimmune diseases are conditions in which the body's immune system mistakenly attacks its own healthy tissues, thinking they are harmful invaders. These disorders can affect nearly any part of the…

deka July 22, 2025