Fellas -- thinking about skipping a spin on the ellipitical this evening? Here's some (low-cal) food for thought. A new study links weight loss with an increase in testosterone and sex drive in middle-aged men, The Daily News reports.

The study -- which was announced at the Endocrine Society's 94th Annual Meeting on Monday -- looked at 891 middle-aged obese men with prediabetes, or high glucose levels that border on turning into Type 2 diabetes, according to Diabetes.org. (The average participant was around 54 with a body mass index of 31.9; Type 2 diabetes is the form of the disease more commonly associated with being overweight.)

Those who incorporated two-and-a-half hours of exercise a week into their lives, as well as healthier food choices, saw dramatic results in the course of a year. There was a 15 percent increase in testosterone levels and a 46 percent decrease in instances of hypogonadism, a condition characterized by low testosterone levels that can be linked to low sex drive and erectile dysfunction, according to Mayo Clinic.

Weight loss has long been associated with feeling more amorous in the sack. Men's Health noted earlier this year that losing abdominal fat can increase blood circulation to the penis, leading to -- you guessed it -- better erections and performance. And in 2011 Health.com reported on a small sample size of men in Australia who saw an increase in sex drive after losing 5-10 percent of their weight.

Feeling inspired to work out now? Here are 10 exercises best suited for people over 50.

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  • Yoga

    Yoga offers a <a href="http://www.huffingtonpost.com/deepak-chopra/yoga-heart-health_b_900621.html" target="_hplink">myriad of wellness benefits:</a> flexibility, balance, centeredness, strength, mindfulness and others. Yoga is a great option for aging bodies, as it promotes working within your own comfort zone. Postures and sequences range from gentle and relaxing to more intensive for advanced yogis.

  • Stretching

    Another way to promote flexibility and overall health is incorporating some simple stretches into your daily routine, be it at home, at the gym or even outdoors. Stretching prevents injury, <a href="http://www.huffingtonpost.com/2011/10/24/yoga-stretching-back-pain_n_1029014.html" target="_hplink">can relieve back pain</a> and boosts energy. Note: It's important to stretch properly to avoid injury. Check out some good <a href="http://www.webmd.com/fitness-exercise/healthtool-basic-stretches" target="_hplink">examples of stretches here</a> and these <a href="http://www.huffingtonpost.com/2011/07/08/stretching-mistakes_n_892444.html#s304603&title=Not_Doing_It" target="_hplink">common stretching mistakes</a>.

  • Biking

    Biking is a great low-impact, cardiovascular workout, not to mention it's a lot of fun. There are a few ways to incorporate biking into your routine. Joy rides in your free time are always a good option -- alone or with a group. You could consider joining a local bike group or riding to nearby destinations instead of taking the car. <a href="http://www.livestrong.com/article/456032-stationary-bikes-and-health-benefits/" target="_hplink">Stationary bikes</a> also have great health benefits. Already a cycler? Here's how to get <a href="http://www.huffingtonpost.com/2011/05/30/6-ways-to-get-more-benefi_n_868670.html#s285033&title=Get_in_tune" target="_hplink">more benefit from your bike ride</a>.

  • Brisk Walks

    One of the most <a href="http://www.mayoclinic.com/health/walking/HQ01612" target="_hplink">beneficial exercises</a> is something humans have been doing for centuries: walking. Simple modifications to your routine, like parking further away and walking the extra distance or taking the stairs instead of the elevator, can really add up to boost your overall health. For an even greater benefit, take brisk walks that get your heart rate up.

  • Pilates

    <a href="http://pilates.about.com/od/whatispilates/a/WhatIsPilates.htm" target="_hplink">Pilates</a> is another low-impact exercise that's ideal for aging bodies. It's similar to yoga but puts more emphasis on gaining control and balance of the body by strengthening the core muscles. Pilates can be done in a class or at home with a video or other guide. <a href="http://www.huffingtonpost.co.uk/paola-bassanese/keep-fit-with-classical-p_b_987756.html" target="_hplink">This piece</a> offers a great run-down of the activity, along with images of some classic pilates stretches and workouts.

  • Tennis

    Tennis is a classic sport, well-loved for being fun and <a href="http://my.clevelandclinic.org/heart/prevention/exercise/tennis.aspx" target="_hplink">great for you</a>. It's a strong aerobic workout and helps keep you agile, especially important as you get older. Tennis is also a very social activity -- great for the body, mind and spirit!

  • Swimming

    Swimming is easy on the body and is also one of the most comprehensive workouts, hitting <a href="http://www.webmd.com/fitness-exercise/guide/fitness-basics-swimming-is-for-everyone" target="_hplink">all the major muscle groups</a>: shoulders, back, abdominals, legs, hips and glutes. If you're getting serious about swimming, it's important to learn proper techniques, but even free-styling in the local pool or outdoors in the summer is a great way to exercise.

  • Dance

    Dancing is one of those activities that doesn't feel like working out, but is an incredible <a href="http://www.livestrong.com/article/91589-fitness-benefits-dance/" target="_hplink">aerobic exercise</a>. It's a good option for those that want more physical activity but don't like the gym or in the winter when it's harder to get outdoors. There are a bunch of styles to choose from: ballroom dancing, contra dancing, salsa, ballet, tap, country and others.

  • Elliptical

    As the body ages, running and jogging can take a toll on the joints, knees or back and potentially cause injury. An elliptical cross-training machine is an alternative to running, which still gets your heart rate up but at a <a href="http://www.mayoclinic.com/health/elliptical-machines/AN01620" target="_hplink">lower impact</a>.

  • Strengthening Exercises

    You can take a simple walk to the next level by bringing weights along to build strength in your arms and boost the cardio benefits. Strength-building techniques like pushups, squats and lunges are easy to do at home or can be squeezed into buckets of free time throughout the day.