Colorado Runner - Colorado's running news, events and results source

Bikes are a valuable means of transportation today. First and most importantly, bikes are good for the environment. Taking your bike instead of a car helps reduce carbon emissions. Second, bikes keep you fit. Riding even a few days per week is good for your cardiovascular and overall health.

If you’ve ever woken up with burning quads the day after a hilly race, you can probably blame all the downhill pounding. Although running uphill may feel more difficult from a cardio perspective, going downhill well is challenging—and a lot harder on your body.

US sprinter Sha’Carri Richardson broke the internet last summer when she was suspended for testing positive for cannabis use after her 100m win at U.S. Olympic Trials. USATF and World Athletics received some backlash as there is little scientific research on whether cannabidiol (CBD) and…