If it's above the neck, run but monitor, on the chest = rest.
A head cold may have your HR 5 to 10 beats higher for the same pace. So it's either going to feel slow or hard work
@user69121 started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
If it's above the neck, run but monitor, on the chest = rest.