The appearance of hair and nail growth after death is caused by skin dehydration., Hair and nail growth requires hormones that stop working after death., Scientists have proved that people use only 10% of their brains., Brain damage can affect many different abilities., Brain imaging shows that all parts of the brain are active at some time., There is strong scientific evidence that everyone must drink eight glasses of water every day., Most of the water we need comes only from drinking pure water., Drinking too much water can be dangerous., Turkey contains much more tryptophan than other types of meat., Large meals can make people feel sleepy., Alcohol can also increase sleepiness after meals., Reading in dim light can permanently damage your eyes., Reading in poor light can cause temporary eye strain., The discomfort from reading in dim light usually disappears after rest., Shaving makes hair grow back faster and thicker., Shaving removes only the dead part of the hair., Shaved hair may look darker because it has not been exposed to the sun., Mobile phones often cause serious accidents in hospitals., Some minor problems with medical devices have been reported., New studies show that mobile phones rarely interfere with medical equipment., Using mobile phones can sometimes improve communication between doctors.

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