The summer season is here and that means you can take your fitness routine outdoors. In this Fitness in Four segment, we're highlighting the importance of warming up prior to your workout and we also have some tips for those just breaking into the world of fitness.
Because tennis balls are extremely hard to recycle and the industry has yet to develop a ball to make that easier, nearly all of the 330 million balls made worldwide each year eventually get chucked in the garbage, with most ending up in landfills.
