Jim’s Tech Talk By Jim Langley Way back in 2009 Shimano introduced their first electric-shifting Dura-Ace 7970 Di2 groupset. Di2 is short for Digital Integrated Intelligence (Di2 = DII, get it?). In case you haven’t tried or followed the electric shifting trend, I’ll explain what DII means in terms of advantages (feel free to scroll ahead if you’re already … [Read more...] about Thoughts on Wearing Out my Shimano Di2 Front Derailleur
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Exercise Safety and Air Quality
By Coach John Hughes RBR reader Gary F. asks, “With all of the smoky days this summer and the air quality index running around 150 or so, do you curtail or modify your workout schedule to avoid the smoke?” Gary, this is an excellent question because smoke and also ozone levels are international problems. There are multiple pollutants in the air. The general Air Quality … [Read more...] about Exercise Safety and Air Quality
Suspected Carcinogens in Some Sunscreens
By Gabe Mirkin, M.D. In May 2021, an independent testing lab, Valisure, found elevated levels of benzene, a suspected carcinogen, in some sunscreens. As a result, Johnson & Johnson recalled five kinds of Neutrogena and Aveeno sunscreen sprays, and CVS stopped selling some of its sunscreen products (Dermatology Times, May 25, 2021). In August 2021, Haereticus … [Read more...] about Suspected Carcinogens in Some Sunscreens
Rusty Hip Hinge Hack
By Martin Sigrist Takeaway: The hips play a huge part in enabling us to move freely and live without pain. However in normal day to day activity they may remain static and become "rusty". The result can be reduced mobility and referred pain, for example in the back or knees. Fortunately it is possible to help resolve this at source using a simple exercise to remind the hips … [Read more...] about Rusty Hip Hinge Hack
Interview with Jack Thompson – The Amazing Chase
By Sheri Rosenbaum If you followed this year's Tour de France, the name Jack Thompson indeed surfaced. This ultra cyclist wasn't riding in the peloton but instead set out on July 5th, riding the exact route two stages per day for a total of 10 days. His goal was to catch the peloton, overtake them, and beat them to Paris. Spoiler alert, he did. Below is my interview … [Read more...] about Interview with Jack Thompson – The Amazing Chase