Symptoms of lead poisoning are varied. They may affect many parts of the body. Most of the time, lead poisoning builds up slowly. It follows repeated exposures to small quantities of lead. Lead toxicity is rare after a single exposure or ingestion of lead.
The new formula for women, based on the new research, is 206 minus 88 percent of age. At age 50, the original formula gives a peak rate of 170 beats per minute for men and women. The new women's formula gives a maximum heart rate of 162 beats for women. Many men and women use their peak heart rate multiplied by 65 to 85 percent to determine their upper heart rate when exercising.
What is a Normal Heart Rate or Resting Heart Rate? There are three general ways to classify heart rate, 1) normal, 2) fast and 3) slow. A resting heart rate is normal between 60-100 beats per minute. A resting heart rate is fast (i.e. tachycardic) at greater than 100 beats per minute. A resting heart rate is slow (i.e. bradycardic) at less than 60 beats per minute.