No Heart rate while on an indoor cycle

[Icecoldalex2]

Why is it that the heart rate function often does not read heart rate when I ride an exercise bike inside?  .  On outside cycles it does.

Moderator Edit: Clarified subject

[CindyMFitbit]

Thanks for stopping by @Icecoldalex2. 

I appreciate the details shared on your post. As you may know, several factors can affect heart rate, including air temperature, stress level, alcohol or caffeine intake, immune response to illness, and medication use.

Exercising in cold weather can make it more difficult for your device to track your heart rate, as environmental conditions can affect skin perfusion (the amount of blood that flows through your skin). To get more tips, review our help article How do I improve the accuracy of a heart-rate reading?

Hope you find this information helpful.