As mentioned above, technology has improved our lifestyles dramatically. Task which took skilled people are now being done with computers and robots. This increases quantity, quality, and efficiency. All this increase our standard of living. Therefore leisure time increases. It is suppose too, but to an extent this is not true. Evidence show that with increasing automation, we are carrying our work home with us. This decreases leisure time, making individuals less active physically. This is a small example of the leisure paradox.

Medicine has also improved our lives. Medicine has eliminated many diseases which can lead to death. The life expectancy of an average human during the 1800's range from 45 to 55 years of age. But because of medicine this has change to a life expectancy of about 80 year (

North American). Some people are even living 100 years, which is a slowly growing trend. Medicine also includes doctors. Doctors have also increased our health. By diagnostic checkups they can determine what precautions should be done in order to be more healthy. One prescription is regular physical exercise.

· favorable influence on premenstrual tension

2. The mitochondria, the subcellular structures responsible for the production of large amounts of ATP (the high-energy compounds from which our bodies derive energy) have a significantly greater capacity to generate ATP, due to an increase in their size and number.

Decrease in musculoskeletal disorders. Physical activity lowers the chance of osteoporosis, bone fractures, connective tissues tears, and lower back syndrome. Many people because of less leisure time think that supplement vitamins or other miracle potions can achieve the results of physical activity. But this is false. The supplements combined properly with physical activity can improve your health. Osteoporosis is a major problem in women, 6.2 million fractures including 227,000 hip fractures and 530,000 vertebral fractures.

1. The trained muscle is more efficient at mobilizing and metabolizing fat. This is attributable to an increase of blood flow within the muscle and to greater activity of fat-mobilizing and fat-metabolizing enzymes.

· increased enjoyment of exercise and social contracts

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Approximate Word count = 1139
Approximate Pages = 5 (250 words per page double spaced)