Gradually increase mileage Charity states that runners often increase their mileage too fast. The "10% rule" is a way to reduce big jumps in mileage. This rule tells runners not to increase their weekly mileage more than 10% from the week before. Injury is usually caused by a heavy training load, mental stress, illness, or other factors. Charity states that the body cannot handle the load if it exceeds its capacity." Running can increase their training load slowly by following the 10 percent rule. Read About Latest Technology, News, Health & Fitness, Books, Movies and Many More #mentalstress #illness #health #charity #goodhealth #wellness #lifestyle