Hi,
Why do some teens give in to peer pressure and abuse drugs?
c. friends who use drugs
Smoking causes coronary heart disease, the leading cause of death in the U.S. Smoking causes lung cancer and lung diseases including COPD, and Emphysema.
Alcohol can cause brain damage. Binge drinking can cause blackouts, memory loss and anxiety. Long term drinking can result in permanent brain damage, serious mental health problems and alcohol dependence or alcoholism.
#besmartdontstart
Some bacteria can fight other harmful bacteria’s and some bacteria’s are harmful to the body.
Answer:
Mary's target heart rate is 103 beats per minute (bpm).
Explanation:
The maximum heart rate (MHR) is the rate at which the human heart of a given person reaches the highest demands. At rest, the heart rate is about 60 to 80 beats per minute.
MHR = 220 - age
So, for Mary: MHR = 220 - 14 = 206 beats per minute (bpm)
Now we can calculate Mary's target heart rate:
Target heart rate = MHR * 50% = 206 * 0.5 = 103 beats per minute (bpm)
Hope this helped!
It's more accurate, especially since heart rate is almost universally measures in beats-per-minute, than, say, timing your pulse for a [factor of 60] seconds (30 seconds, 20 seconds, 15 seconds, 12 seconds, etc.).