Aerospace engineers design aircraft, spacecraft, satellites and missiles, according to the BLS. In addition, these engineers test prototypes to make sure that they function according to plans.
1 Try a deload every six weeks or so. 2  Most serious coaches recommend three or four weeks on, one week off to their intermediate and advanced trainees. 3  These are people competing in strength sports and pushing serious weight, so you may not have to deload quite so often.
You should visit the dentist at least once a year, and the ADA recommends that you brush twice a day for two minutes and floss once a day. If you choose to ignore their advice, youâll get cavities, sure â but here are 13 other things youâre at risk of, some more common than others.