Why the ‘Talk Test’ Is Better Than Heart Rate Zones
via lifehacker.com
Short excerpt below. Read at the original source.
Did you know you can customize Google to filter out garbage? Take these steps for better search results, including adding my work at Lifehacker as a preferred source. Whether you’re running or lifting, it’s all too easy to overdo it during your workout. While I’m marathon training, 80% of my runs are much easier than […]