MI's, Myocardial Infarctions, or Heart Attacks while can happen at random, are greatly exaggerated by disorders that are themselves exaggerated by sedentary lifestyles. Arteriosclerosis (hardening of Artery walls) and Atherosclerosis (plaque buildup on artery walls) are two disorders that contribute a lot towards MI's, and these both can be prevented via physical activity.
Artery walls are literally muscles, so with physical activity artery wall hardening can be prevented. Plaque buildup usually results in clots called Thrombi, which can eventually occlude the coronary blood vessels. These plaques consist of cellular debris, platelet and blood cells, and lipids called cholesterol an accumulation of which is called Hyperlipidemia. Exercise can greatly decrease the lipid count in the blood stream (as well as a healthy diet). Additionally by exercising you can decreases blood pressure which contributes to clot formation, when it is excessive (Hypertension) by actually scratching the artery walls (clots don't start all of a sudden).
Answer:
by changing heart rate and stroke volume
Explanation:
Factors affect cardiac output by changing heart rate and stroke volume. Primary factors include blood volume reflexes, autonomic innervation, and hormones. Secondary factors include extracellular fluid ion concentration, body temperature, emotions.
<span>Water makes up about 60 percent of our body weight.
(</span><span>50% for an elderly person.)</span>
Answer:
6hrs to 6 days
Explanation:
Symptoms usually start 6 hours to 6 days after infection. They include diarrhea that can be bloody, fever, and stomach cramps. Most people recover within 4 to 7 days without antibiotic treatment.
Answer: Personal flotation device
Explanation:
Personal flotation device is a equipment which is used to assist the wearer to keep floating in water. The device is available in different sizes to cover people of different size and shape. It protects people against drowning in deep waters and also facilitate the rescue team to conduct the rescue operations in situations of flood, and to find dead bodies of the drowned victims.
You should always wear personal flotation device to perform the rescue operations.
