Nothing, the only reason why we use toothpaste is to freshen your breath. You could just not use toothpaste and your teeth would be fine, you just might have some bad breath.
Scurvy and rickets are some health problems caused by lack of nutrition, but I don't know many more.
Some say obesity, but the people who lack self control should be blamed not the food.
some of the problems of money includes: lack of measurement of values.
Some problems caused by war is loss of life and economic crash.
Yes, in some cases.
one of the things that caused some of the economic problems would be they had a bad economy and it caused there empire to be overthrown
Lack of Water
some of the problems include... 1. deforestation 2.water polution 3.Lack of food/jobs/water/energy/etc. If the population rapidly increased, we likely wouldn't have the resources to support our larger population.
Famine poverty child soldiers lack of education prostitution health problems racism
Lack of vital minerals can cause some nasty health problems, like brittle bones from lack of calcium to anemia from lack of copper, to name just a couple.
Some people are afraid to face their problems thats why their solution is to run from it
Rickets - is caused by lack of vitamin D in the diet.