Answer:
True
Explanation:
Free radicals are unstable molecules that lost an electron and will seek to replace it as it gives rise. These are formed from oxygen and although about 95% of the oxygen we consume is for energy, the rest generates these harmful molecules.
Free radicals cause aging, DNA alterations and <u>cardiovascular diseases</u>, arteriosclerosis, diabetes, increase levels of bad cholesterol and <u>cancer</u>.
There are also other elements that increase the number of free radicals in our body and these are: tobacco, radiation, excessive consumption of processed foods, pesticides and industrial pollution.
Hormones - a chemical realesed by the endocrine system in the bloodstream
In general, for most things, A would be correct (Any time of the day). It kind of depends on what you ar collecting the sample for. I think the earlier the better but it doesnt usually matter.
