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What causes a resting heart rate to increase? |
Answer
I assume you mean you are asking why your heart would race for no apparent reason, when you are at rest and not exercising. It could be a panic attack, but you would probably recognize that in other ways (a general feeling of fear). Perhaps a heart flutter from caffeine?
Definitely speak to your doctor if it concerns you.
Answer
Everyone dreams every half hour. Most of the time we don't even remember our dreams. Most people have experienced nightmares (not in a complete REM sleep) and this occurs generally just before one is ready to wake up, but some people can wake up in them middle of the night in terror, perspiring and a racing heart not to mention trembling of the body.
If you have experienced a nightmare (you could also be under stress and not in REM sleep and wake up easily) and you are dreaming about something terrible happening to you then your body reacts with racing heart, dry mouth, trembling and the survival mode (the adrenal gland is pumping like crazy) and this is no different than if it was really happening to you while awake.
If you have habitual sleep problems please see your doctor.
Answer
It can be caused by a lack of sleep or by hyperthyroidism. Those are the only things I can think of.
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First answer by Ike. Last edit by Bobbles. Contributor trust: 60 [recommend contributor]. Question popularity: 84 [recommend question]
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