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Are you feeling a little blah in the bedroom? You may need to get outside more! 

The Doctors share how sex drive is linked to having adequate vitamin D levels. ER physician expert Dr. Travis Stork explains that deficient levels can affect a woman's estrogen levels and a man's testosterone levels.

Watch: Is Afternoon the Best Time for Sex?

In addition to diet and taking a supplement, one way to get vitamin D is from spending time in the sun -- but just how long should you spend outside to achieve the right level without putting yourself at risk for skin cancer or sun damage?

Turns out, a little sunlight goes a long way. Dermatologist expert Dr. Sonia Batra says to aim for 2 to 3 times for just 5 to 10 minutes for achieving optimal vitamin D levels. She strongly warns against spending longer in the sun without wearing sunblock or protective clothing due. 

Watch: Can Cycling Boost Your Sexual Health?

Additionally, in the video above, The Doctors discuss how those who suffer from sleep apnea can also suffer from a lower sex drive and what you can do about it.