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How Does Your Heart Rate Change During Rem
Increased: Rem sleep is actually associated with surges in heart rate and an increase "sympathetic tone." physiologically, rem sleep is stressful with an increase in cerebral blood flow as well. Non-rem sleep is characterized by slowing heart rate and decreased cerebral blood flow. You dream in most all stages of sleep but rem dreams are more vivid and we usually remember them. ...Read moreSee 2 more doctor answers
Yes REM matters: When you switch into rem sleep, your breathing becomes more rapid, irregular, and shallow. During rem sleep, breathing is erratic, with variable respiratory rate and tidal volume and frequent central apneas. Thus, breathing is impaired during sleep compared with wakefulness. ...Read moreSee 1 more doctor answer
Can you tell me in an ecg, why does the amplitude of your heart rate and pulse change when one is dehydrated?
Physiology: Cardiac output depends on stroke volume (the volume pumped in 1 beat) and heart rate. When dehydrated, your preload is reduced reducing stroke volume, so the heart speeds up to compensate in its attempt to maintain stable cardiac output. (IOW, if you can't pump more, pump faster). ...Read more
Multiple factors: The natural response to stress of any kind is the release of the bodies stress chemicals, which include adrenalin, that speeds the heart to posh blood flow. Oxygen hunger can drive the stress response and an automatic increase in breathing rate to get more oxygen. ...Read moreSee 1 more doctor answer
High output: During pregnancy, here is a significant increase in plasma volume, creating a dilutional effect on one's blood counts (anemia). This coupled with the large flow of blood from maternal circulation to the placenta causes a compensatory rise in heart rate to generate the necessary cardiac output and deliver enough oxygen to the tissues. ...Read more
Can anxiety cause prominent brain ventricles? And does it mess up your heart. I've always had high heart rate.
No and no: No, anxiety does not cause prominent brain ventricles. It can increase your heart rate, but it doesn't "mess up" your heart. Some people with anxiety attacks have been found to have mitral valve prolapse (mvp), but this does not come from anxiety. Mvp usually causes no symptoms or hemodynamic problems unless severe -- in which case, a cardiologist would be helping you. ...Read more
No: Though most people have at least a very mild fluctuation in heart rate with the respiratory cycle. This is called sinus arrythmia or sinus dysrhythmia--a normal finding. In some people, this can be quite pronounced and seem abnormal, but is perfectly normal. ...Read moreSee 1 more doctor answer
Time change: Time change and when it gets lights and dark affect your circadian rhythm. Body is responding to light and dark cues so when people travel those clues are given at "incorrect" time. Your body doesnot kow what to expect until it adapts over a few days. In general expect about 1-2 days for every hour of time difference. ...Read moreSee 1 more doctor answer
what happens when beta blocker reaches half life? Does your heart rate start to gradually increase or does it stay lowered for longer?
"Half Life" is the: number of hours it takes for half of a drug to be eliminated from your body. Different B-blockers have different half-lives. If you don't take the next dose on time, the heart rate & blood pressure will gradually go back to pre-treatment values. In fact, sometimes the heart rate & B/P will go even higher than that. This is called a "rebound effect." Hope this answers your question. Dr. Anne. ...Read more
Exercising the heart: Your heart rate during exercise is an insight into how hard your body is working. First off you need to determine your maximum predicted heart rate for your age. This is 220 minus your age. From this number you can figure out your "zones". A good workout zone is 70-85% of the maximum. Talk to your doctor or a personal trainer to figure out what's best for your health and your goals. ...Read moreSee 1 more doctor answer
29 male no exercise, resting heart rate is 95-100bmp, normal blood pressure. How can I quickly reduce that rate, how long does exercise take?
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