* Shave. Especially for men this one: shave or clip your torso hair (both sides if applicably hairy) . On a sunny and warm June-to-September PB morning this might make your core stay cool just that little bit longer. Then there’s always the legs…
All the suggestions are starred:
*** 3 stars. IMHO it will work
** 2 stars. It might work
* 1 star. Can’t hurt
X 1 cross. It CAN hurt if done wrong.
All 50 tips are shown here as a series of posts : https://the5krunner.com/tag/how-to-get-a-5k-pb/ or on twitter using #howtogeta5kpb. They are all SHORT-TERM tips that will work in the next week or so with varying degrees of success.