Jessica Stork
Biology Lab Report
October 19 2015

Introduction
The normal resting adult human heart rate ranges from 60–100 bpm. Bradycardia is a slow heart rate, defined as below 60 bpm. Tachycardia is a fast heart rate, defined as above 100 bpm at rest (3). Heart rate is the number of heartbeats per unit of time. Usually heart rate is expressed as beats per minute (BPM). Each year, around 735,000 people have a heart attack, with more than 525,000 of those heart attacks being first heart attacks. Heart disease strikes every ethnic group in the United States, and in 2008, 25 percent of whites, 24.5 percent of African Americans, and 21 percent of Hispanics died from a heart-related illness (2). This can be monitored by checking your heart rate regularly. It is important for the measurement to be taking accurately and under the best resting conditions (4). Generally, a man's heart can be as much as 25% larger than a woman's heart. This means that a man's heart has the capacity to pump blood easier than a woman's. The larger the heart, the greater the volume of blood that can be pumped to the rest of the body. As a result of the size, a man's body has a larger capacity for speed and strength. It is the fundamental reason that men can run faster than women. Adding to the differences in size, a woman's heart can beat as many as six beats per minute faster than a man's (1).
Hypothesis
I think the women of the studies heart rate will be a difference than the men’s.
Overview: We all started by taking our heart rate for one minute. Then when completed we walked 2 flights of stairs up and down for 3 minutes. Then we counted our heart rate for another minute. Directly after this we took a measure of recovery time to see how fast it took to get our heart rate back on track.
Materials
* Paper * Fingers * Wall Clock * Phone Timer
Method
I used my