<span>Social cognition is the best answer.</span>
A warm up consist of a period of non-strenuous activity that slowly prepares the body for more vigorous exercise.
Most warm up will gradually increase in intensity. The muscle which was used can be different for each activity. <span>Not only athlete, </span>singer can do warm up too.
I don't think that infertility<span> services should be required for coverage on insurance plans, but I do think people should have options to provide themselves with that coverage for an extra premium. A woman would have to elect the additional premium by a certain age (determined by the insurance company), and so long as those premiums are up to date then infertility treatment could be covered. It might actually be a moneymaker for the insurance companies, and provide a sense of security to people who know that having a family will be a priority they will fight for financially if they have to.</span>
