4. Hey There, Sunshine

A study published in the American Society for Clinical Nutrition Journal in 2002 claimed that one of the biggest reasons for frailness in legs is a Vitamin D deficiency. This is an essential Vitamin that aids the body in many important tasks; and not getting enough of it can cause improper regulation of minerals like phosphorus and calcium, which are pivotal to bone health.

Regular sunlight has been proven as one of the best sources of Vitamin D, so you might want to include an early morning walk in the sun into your daily routine. You can also add more foods that are rich in Vitamin D into your diet. Your legs will thank you!