Let's face it: As we get older, our metabolism takes a huge hit.

According to Dr. Peter LePort, medical director of the MemorialCare Centre for Obesity at Orange Coast Memorial Medical Centre in Southern California, it generally starts to slow down after age 30.

This means fewer binges and mindless snacking and more mindful eating and exercise.

Which brings us to our next point: Being active at every age is important, however, as our bodies change, the types of exercises we should be doing change, too.

The extent that you push yourself at age 20 shouldn't be the same exertion level at age 50, and your changing body composition requires different shifts in exercise. 

Pilates, yoga, and weight training are all excellent forms of exercise to carry out in your 50s and beyond.

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A spokesperson for Zumba says that they see individuals in their 90s take part in their classes, too, so go ahead and dance to your heart's content (at your own pace and speed, of course).

As you age, maintaining muscle mass is extremely important, so long as you aren't over-exerting yourself (working with a trainer or speaking to a physician will serve you well, especially as your bones become more brittle and pain begins to manifest itself more easily).

Increasing flexibility is also crucial as you age, so taking Pilates and yoga classes will do wonders for your body - one 85-year-old woman even corrected her hunchback with yoga.