# Heart rate climbing through your training?

Saturday newsletter, sent June 5, 2024 by Dr. Alex Harrison.
Web page: https://saturday.fit/newsletter/2024-06-05-heart-rate-climbing-through-your-training/
Prices and features may have changed since this was sent.

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· Cardiac Drift & Dehydration ·

Hi Saturday Morning Fan,

As an endurance athlete, have you ever wondered why your heart rate is so high at the end of your workout? Simply, here's why:

When you train, your muscles produce heat. You get hotter. Sweat is what cools you.

When you sweat, you lose water. That water comes from blood.

When you have less fluid in your blood, your heart pumps less per beat.

When your heart pumps less per beat, it goes faster to compensate. That's cardiac drift.

So why is this important?

You can run faster for longer with less effort if you stay hydrated _during_ training, not just before.

· Want more? ·

ICYMI, Michelle and I shared our honest thoughts about Cytomax and what you should consider replacing it with. Watch [here](https://www.youtube.com/watch?v=baLon7kgFsc&ab_channel=Saturday%7CRide%26RunFaster), if you're into buzzword takedowns.

· Coming Soon! ·

Want your coach to make Saturday part of their coaching services? Want to automatically share your nutrition info with your coach? Forward them this email or send them [this link](https://docs.google.com/forms/u/2/d/e/1FAIpQLSdOasQ3bnb053MAiIHJxHuOPRTpZPmpxNDpG9TuOZCfwwhDEg/viewform?_kx=9hsBZ0QwFqGK5D_wGTUICA.SE2YLt&urp=gmail_link) directly!

Have any thoughts, comments, or questions that you'd like to share? Feel free to [email](mailto:info@saturdaymorning.fit) us.

Dr. Alex