This move had a decisive impact on the shaping of a national job safety and health program in 1967, as the Departments of Labor and HEW promoted their competing proposals. The Bureau of the Budget accepted the Department of Labor's recommendations.
After I walk for about a minute, my legs are so tired... Q. After I walk for about a minute, my legs are so tired it feels like I've walked for miles. My doctor says it's because of poor circulation in my legs and ordered a medication, pentoxifylline, that caused dizziness, so I'm afraid to take it.
Tough mental tasks can cause people to tire more quickly at physical exercise, a new study suggests. The study was small, however, with only 16 participants. It found that mental fatigue did not change how the heart or muscles performed, but rather the subjects' perceived effort seemed to determine when they reached exhaustion. More research is needed to figure out why, the scientists said.