This definition can be contrasted with that proposed by life-span developmental psychologists: Development is a life-long process beginning at conception and ending at death (Honzik, 1984, p. 309). Development is thus extended to include the whole of life.
A cockroache can live up to 10 days without its head. In fact it doesn't die of suffication but of dehydration.  a cockroach can live up to a week without it's head because â¦it's brain is in its body. 1 person found this useful.
Even with their heads, cockroaches spend about 75 percent of their lifetime resting, so this headless mostly resting state is nothing new to them. What is even more shocking than their bodies being able to live without the head for some time? â The lonely head of a cockroach can thrive for several hours if properly nourished with food.