Google play music and YouTube music asking for body sensor data

[Android Central Question]

Like many people in this world I'm terribly concerned about the privacy I'm losing by using my cell phone. I recently learned it's a good thing to go to Google Play services and turn off permissions I don't want apps to have. One of them is body sensor information. I do not know any kind of smart device to wear on my body. This should not be turned on by default. So I shut it off. Now Google Play music and YouTube are constantly telling me they need access to my body sensors to work right. They appear to be working okay anyway. Gmail doesn't give me any notification. I can find nothing on the internet about why Google play music or YouTube Red need my body sensors. I want to know who has been taking my data and how they've been using it. I want it all deleted. I want this to stop. I want the constant requests to use my body sensors stopped.obviously they are constantly asking my phone for information about my body.