Science Why Morning and Evening Runs Feel Different Author: Running Style    |    Published: 15 August 2026    |    Updated: 15 August 2026 Morning versus evening running looks like a straightforward matter of preference. It isn’t. Body temperature, hormones, digestion and available fuel all shift through the day,...

A springy track surface looks like an odd choice when concrete feels faster underfoot. But resilience and damping are two different properties, and the Harvard experiments that shaped modern track design found a tuned middle ground beats both extremes: 2-3% faster times and roughly half the injury rate of rigid...