"Benefit her health" means which would be good for her body. So how could taking a bus, being driven, or taking a cab be good for her health? Riding a bicycle is the only way she can get any physical activity on the way to school.
ANSWER:
Caffeine is a stimulant that makes your heart rest increase, and stress increase. The reasoning for this phenomenon is caffeine stimulates your fight or flight instinct, so if you have anxiety or stress it will worsen it. Studies have shown that drinking caffeine can cause anxiety attack or make you jittery. Caffeine can facilitate the release of natural hormones that act on the heart, this hormone is similar to adrenaline causing your blood pressure to increase immensely.
<span>Miriam is exercising outdoors in high temperatures when she starts experiencing signs of a heat stroke. Some s</span>ymptoms include mental confusion, fast breathing, fast heart rate, flushed skin, headache which could result to loss of consciousness. To avoid heat stroke, it is better to exercise during early morning or at night time. Drink a lot of liquids too.
