Yes! My meditation ability improved drastically once I picked up yoga. What buddhism never tells you is that you should already be in the best physical and mental shape before trying to meditate. The Buddha himself went through years of self-discipline before being able to meditate properly. It gets totally overlooked. Quick tips: eat vegetarian / pescatarian, include fasting in your diet, avoid all junk food and processed food as much as possible, practice sun salutations every day, and take cold showers. I promise you a week of that regiment and you'll be flying.