scientificly it isnt. philosophicly many believe it is the center of loving emotions
Alcohol in moderation doesnt do much besides get you feeling good. Too much alcohol puts stress on the heart to work harder to supply oxygen to the system and it constricts the way the oxygen is supplied.
A myocardial infarction, commonly referred to as a heart attack, occurs when the blood supply to the heart is cut off. This is usually the result of plaques in the arteries, that form blood clots if they rupture.
Some things to consider when deciding the best heart rate monitor (HRM) are:
1. HRM's with chest strap and watch tend to be more accurate than wrist or thumb versions.
2. A chest strap can also be detected by modern cardio equipment so HR is displayed on the console monitor. This can be useful when exercising at gyms.
3. Is the chest strap battery accessible? i.e. Polar have sealed units so when the battery runs out you have to send in the chest strap for a battery replacement. Other models such as Reebok and Timex allow access the battery so you can replace it yourself.
4. Choose one with a large HR display so you can read it easily when exercising.
I find the Timex HRM's to be very reliable.
Finally, unless you are an athlete or serious runner/triathlete, buy the one with the least features (also happens to be the cheapest). You will find you only use the HR reading and maybe setting upper and lower limits if preferred. Most people waste their money by buying too many features that they never use.
Right Atrium , Left Atrium , Right Ventricle , Left Ventricle