Is adrenaline a protein or steroid

SEE ALSO Adrenal Gland ; Amino Acid ; Blood Sugar Regulation ; Endocrine System ; Female Reproductive System ; Homeostasis ; Hypothalamus ; Male Reproductive System ; Nucleotides ; Pancreas ; Pituitary Gland ; Thyroid Gland ; Transcription

Epinephrine acts by binding to a variety of adrenergic receptors . Epinephrine is a nonselective agonist of all adrenergic receptors, including the major subtypes α 1 , α 2 , β 1 , β 2 , and β 3 . [59] Epinephrine's binding to these receptors triggers a number of metabolic changes. Binding to α-adrenergic receptors inhibits insulin secretion by the pancreas , stimulates glycogenolysis in the liver and muscle , [60] and stimulates glycolysis and inhibits insulin-mediated glycogenesis in muscle. [61] [62] β adrenergic receptor binding triggers glucagon secretion in the pancreas, increased adrenocorticotropic hormone (ACTH) secretion by the pituitary gland , and increased lipolysis by adipose tissue . Together, these effects lead to increased blood glucose and fatty acids , providing substrates for energy production within cells throughout the body. [62]

Body mass index (BMI) is a simple measure of body fat based on height and weight that applies to both adult men and women. Your BMI is an objective scientific measure that uses your height and weight. You can calculate your BMI by dividing your weight in kilograms by the square of your height in meters. For Americans and other folks who are non-metric, you'll have to do some simple conversions, so grab a calculator:

  • To convert height in inches to height in meters, divide by . For a 72 inch tall man, the height in meters (72/) is
  • To convert pounds to kilograms, divide the total number of pounds by . For a 150 pound man, the weight in kilograms (150/) is
To calculate BMI:
  • Multiply the height in meters by itself (in our example x = )
  • Divide that into the weight in kilograms: (in our example / =)
  • The BMI for that individual is
Weight categories associated with BMI ranges for adults are shown below:

Under Underweight - Normal - Overweight and above Potentially Obese The BMI is a useful indicator of weight status in most people, but for certain folks, such as athletes, it is too simplistic, as it assumes all extra weight is fat - however in athletes the extra weight is often muscle instead. Adding a waist circumference gives a bit more clarity to the picture, since waist girth is almost always fatty tissue. You may also go to your doctor, or to your gym and have your percent body fat measured. This will tell you how much of your body is composed of lean muscle and bone versus fat. Both of these are good indicators of weight as a health risk.

Is adrenaline a protein or steroid

is adrenaline a protein or steroid


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