Chickenpox, or varicella, is one of the most common infectious diseases. It most commonly affects children, but adults can also get it, and for them the disease is usually...
Insufficient sleep affects the body much more deeply than just feeling tired. Chronic sleep deprivation can alter emotional state, reduce work capacity, disrupt the immune system, and...
Many people start their morning with a cup of coffee or tea. They give a temporary boost of energy, but after a few hours, fatigue sets in and the need for...
The shortening of daylight hours in winter is often accompanied by apathy, decreased energy, drowsiness, and frequent colds. Many people attribute these symptoms to the weather or the "winter blues," but...