The Mind Needs Stimulation

A human totally deprived of bodily senses does not do well. After 12 hours in a sensory deprivation tank (where one floats in a body-temperature saline solution that produces almost no skin sensation, in total darkness and silence, with taste and smell and the sensations of breathing minimized) a subject will begin to hallucinate, as the mind, somewhat like a television tuned to a nonexistent channel, turns up the amplification, desperately looking for a signal, becoming ever less discriminat...

 The Change in Environment for a Baby Post-Birth

Imagine for a while the nature of the changes in his world that occurred at birth. From 98.6-degree warmth to 70-degree room temperature. From total darkness to glaring overhead lights in the hospital. From relative quiet, where instead of mother's familiar voice and the soothing rhythmical sounds of her body (her heartbeat, breath sounds. etc.) there are sudden loud, unfamiliar, startling noises. From being carried constantly with the rocking motion from Mother's hip movements, to the utter ...

 Genes are Under Constant Attack

Every animal and plant genome is subject to a constant bombardment of deleterious mutations: a hailstorm of attrition. It is a bit like the moon's surface, which becomes increasingly pitted with craters due to the steady bombardment of meteorites. With rare exceptions, every time a gene concerned with an eye, for example, is hit by a marauding mutation, the eye becomes a little less functional, a little less capable of seeing, a little less worthy of the name of eye. In an animal that lives i...