When we taste food, it is a mixture of both taste and smell. As you eat, the tiny food particles drift up into the passages of the nose from the back of the mouth. The smell of the food contributes tot he simple tastes detected bu the tongue. This explains […]
How do we taste things?
There are distinct regions on the tongue where the main tastes are recognized. The tongue is covered with small bumps, called taste buds that are grouped together in areas with different functions. These taste buds react to simple tastes and those at the back of the tongue detect bitter tastes. […]
Why do ears pain in air plane during take off and landing?
On a normal day on land, the air pressure on both sides of your eardrum is equal, with air passing easily through the Eustachian tube, a narrow tube lined with membranes that connects the back of the nose to the middle ear. Air have low density as we go higher […]
How do we hear?
The ear is made up of three main parts: The fleshy outer ear, the middle ear and the inner ear. Sound waves are funneled by the outer ear through the ear canal to setup vibrations in the eardrum, a thick tightly stretched membrane. The vibrations are transferred to the three […]
How Viruses work?
Viruses are very simple microbes, they can’t do much by themselves. Viruses need a host, another living organism that gives them everything they need to work. Viruses take any chance they can to find a host. They get inside the host’s cells and take it over. Viruses use the host […]
What are Superbugs?
” Superbugs ” is a term used to describe strains of bacteria that are resistant to the majority of antibiotics commonly used today. Resistant bacteria that cause pneumonia, urinary tract infections and skin infections are just a few of the dangers we now face. Antibiotic resistance is a naturally occurring […]
How do Antibiotics work?
Antibiotics are chemicals that help your body to fight diseases caused by bacteria and fungi. They are manufactured naturally by some microbes in order to protect themselves, but are now made synthetically. Different antibiotics work in different ways : Some stop bacteria reproducing by preventing the formation of cell walls, […]
How does the Immune system work?
Unlike most of the other body systems, the immune system is scattered throughout the body. The main defenses against invaders such as bacteria and viruses are white blood cells called lymphocytes which are stored in the body’s lymphatic system. This is a network of thin tubes running throughout the body. […]
What is the best time to Eat food?
Guidelines for Eating Food properly We have to eat only when we are hungry. What is hunger? Hunger is nothing but the signal to us from our body that all the parts in our body are ready for digesting the food properly and mix it with the blood. All the […]
What makes us Hungry?
When we need food, our body begins to crave for it. But how do we know that we are feeling hunger? How does our mind receive the message and make us feel hungry? Hunger has nothing to do with an empty stomach, it begins when certain nutritive materials are missing […]