Built by Murpho - living with Secondary-Progressive MS and the heat intolerance that comes with it - to find the safe windows for walking the family Basenjis, Ripli and Moké.
Heat and humidity can worsen MS symptoms - a hot, muggy day is harder on a body that can't cool itself well, even when the temperature alone looks fine. Leans on dew point as a determining factor, not just temperature. Dew Point is the truest measure of how hard it is for the body to shed heat
The goal is avoiding Uhthoff's phenomenon - a temporary flare of neurological symptoms that heat can trigger in minutes and that can linger for hours. It's just as useful for anyone heat-sensitive, and for the dogs, whose paws and cooling face the same day you do.
Recommendations are conservative starting points, not medical advice. Trust your own body and judgment.