The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.
Did you know?
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
Did you know?
In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.
Did you know?
Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
An ECG strip showing a normal sinus rhythm with the P wave, QRS complex, and T wave identified.
Creating Complex Molecules
Reconstruction Drawing of Djoser's Funerary Complex, Saqqara
Temple of Olympian Zeus, Athens
Potatoes are a good source of complex carbohydrates
Results from Kliegl's study show that older adults can learn complex information-processing