you do not need to worry about taking days off from 'randomly contracting your abs.'
full body compound movements will give you great abs - squats, deadlifts, pullups. to recover from movements like that, you need days off. not for randomly flexing muscles.
"dean ornish and dr. davis think the palmitic acid our bodies use for fuel while we sleep is poison if we eat it. zero-carbers like charles washington think the oldest fuel in our evolutionary history – glucose - used by organisms a billion years ago and without which the brains of modern mammals cannot survive for more than a few minutes – is an unnatural toxin if you eat it. both views ignore basic facts of medical physiology and defy evolutionary history." - kurt harris