In 2008 I was highly sleep deprived through sound technology and highly stressed through criminal harassment, provocation linked to adrenaline and the loss of potassium, depletion of calcium, which is linked to the buffer system and acid-base imbalance.
Several doctors including a cardiologist told me that high levels of stress and sleep deprivation had no effect on the body and heart.
High levels of sleep deprivation, stress, and acid-base imbalance was the medical and physical weapons the mob was using to cause physical damage, premature aging, calcium depletion, and links to serious illness.
The Standard American Diet, S.A.D., a diet high in sugar, refined, and processed foods makes people more vulnerable to this weapon.
http://ireport.cnn.com/docs/DOC-681985