God is definitely interested in what we do with our bodies. Apostle Paul reminds us that our individual bodies are the pieces that make up the entire collective Body of Christ, that me -- my whole self, me entirety, my soul, my physical body, my spirit, my strength, my love -- that's ME. When I become a believer, the Holy Spirit becomes a part of me -- is IN ME. God has invested in me. My talents, thoughts, abilities, gifts (both natural God-given and power from the Holy Spirit).
Basically, as a Christian, God is IN ME by my physical body -- after all, it IS my means of conveyance, how I communicate, how I am seen, how I do and think and feel. The Bible tells me how to please Him, what is appropriate for my body, and for my mind.
Romans 12:1-2 (NLT)
And so, dear brothers and sisters, I plead with you to give your bodies to God. Let them be a living and holy sacrifice--the kind he will accept. When you think of what he has done for you, is this too much to ask? Don't copy the behavior and customs of this world, but let God transform you into a new person by changing the way you think. Then you will know what God wants you to do, and you will know how good and pleasing and perfect his will really is.