Madeline Atwood’s Reviews > Breath: The New Science of a Lost Art > Status Update

To find the best aerobic heartbeat for your age, subtract your age from 180. The result is the maximum an average body can withstand to stay in the aerobic zone; long bouts of training and exercise can happen below this rate, but never above it, or the body will go too deep into the ‘anarobic’ zone for too long. Instead of feeling invigorated/strong, you feel tired, shaky, nauseous

“Simply training yourself to breathe through your nose could cut total exertion in half and offer huge gains in endurance. The athletes felt invigorated during mouth breathing, rather than exhausted.”

His suggestion/extrapolation that early hominids went extinct/were killed off from “disease, weather, each other, or laziness” is so short sighted and lacking in scientific evidence - specifically including “laziness”… makes me question his research methods/other statements a bit