Did you know?
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Did you know?
The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
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."
Stages of Health Behavior Change
Barriers to change
Fitness Evaluation of Various Activities and Sports
The Increase in Divorce
Climate Change: Volcanoes Timescale
Modern machinery has helped farmers increase yields