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The risk of cardiac arrest varies with geographical region, age, and gender. The lifetime risk is three times greater in men (12.3%) than women (4.2%) based on analysis of the Framingham Heart Study. [149] This gender difference disappeared beyond 85 years of age. [150] Around half of these individuals are younger than 65 years of age. [151]
[6] [7] In some cases, angina can be quite severe. Worsening angina attacks, sudden-onset angina at rest, and angina lasting more than 15 minutes are symptoms of unstable angina (usually grouped with similar conditions as the acute coronary syndrome). As these may precede a heart attack, they require urgent medical attention and are, in general ...
The decrease in the rate of injury can be approximated by the Q 10 rule, which states that the rate of biochemical reactions decreases by a factor of two for every 10 °C reduction in temperature. As a result, humans can sometimes survive periods of clinical death exceeding one hour at temperatures below 20 °C. [20]
As temperature increases, so does water loss, decreasing the amount of time a person can survive without water. The longest anyone has ever survived without water was 18 days. [ 8 ] The source of the "3 days" number likely comes from an experiment two scientists did in 1944 where they ate only dry food for a period of time; one ended the ...
A condition called peripheral artery disease (PAD), for example, occurs when the arteries that carry blood from the heart to the legs get clogged; it’s associated with an increased risk of heart ...
Coronary heart disease (CHD) risk at 10 years in percent can be calculated with the help of the Framingham Risk Score. Individuals with low risk have 10% or less CHD risk at 10 years, with intermediate risk 10-20%, and with high risk 20% or more. However, it should be remembered that these categorisations are arbitrary. [citation needed]
The following risk factors aren’t preventable: Age. Over 45 for men and over 55 for women. Family history. Having a family history of early heart disease. Sex. People born male are at increased risk
Long acting nitrates are taken 2-3 times per day and can be used to prevent angina. [6] Beta-blockers may also be used to reduce the incidence of chronic angina. [6] Beta-blockers prevent episodes of angina by reducing heart rate and reducing the strength of contraction of the heart, which lowers oxygen demand in the heart. [6]