Did you know?
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing
Play in Four Cultures Across cultures, play is the most common activity in early childhood. Source:
International Television Viewing Rates in Childhood In most developed countries, children watch TV
Based on the experiments summarized here, how do you think women would modify their interactions if ...
Eating Breakfast Means More Energy and Fewer Calories throughout the Day
Water-based Diseases