First 94 words of the document:
Does Caffeine affect heart rate?
The group measured their heart rate by taking their pulse for a minute. They
were split in two and given 120cm3 of cola to drink. Nobody knew if they were
drinking Caffeine free cola or not. They had to measure there heart every 5
minutes. Before the experiment started we asked them if they had any food
allergies to make sure we did not harm them in any way.
The results for drinking cola without caffeine in it