The Candle Burning Guide - Center Burning Candles. Certain candles are designed to burn down the middle for different reasons, or a combination of different reasons. Candles with a unique finish, or unique burning characteristic, may burn down the middle in order to position the flame inside of the candle and illuminate from the inside out.
To find your maximum heart rate, subtract your age from 220. For example, if you are 40 years old, your maximum heart rate is 180 (that is, 220 - 40 = 180). Multiplying this by 50 percent and then 85 percent results in your target heart rate range of 90 to 153 beats per minute.
Calculating Heart Rate. Your maximum possible heart rate is generally around 220 minus your age. So, for example, a 20-year-old's maximum heart rate would be around 200 beats per minute. The Cleveland Clinic recommends that, during exercise, your target heart rate should be 60 to 80 percent of your maximum heart rate. To calculate your target heart rate, deduct your age from 220.