Do three sets of 15 repetitions (reps) three to four times every week. Planks largely involve the core muscles, but they also strengthen your back, shoulders, and glutes. Follow these steps to ...

Calcium is needed for the growth and maintenance of bones, as well as for muscle contractions ... National Cancer Institute. Anatomy of the skin. Kim JY, Dao H. Physiology, integument. In: StatPearls.

A winter freeze warning was placed over the majority of Oregon to last through Wednesday morning, with temperatures predicted to drop below zero.