Steep hills, with a 10 to 15 percent gradient, have a bigger strengthening effect but are more stressful on calves and Achilles tendons. Start on hills of 4 to 8 percent before progressing.
Mad Men's Charming Rogue
The man who played Roger Sterling, is moving on – surfing in Montauk, hanging with his son, and directing a feature film.
Plus: Greenpeace's High-Seas Avenger
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