New! Sign up for our free email newsletter.
Reference Terms
from Wikipedia, the free encyclopedia

Marathon

The marathon is a long-distance road running event of 42.195 km (26 mile 385 yards or 26.21875 miles). The length of a marathon was at first not fixed, since all that was important was that all athletes competed on the same course. The exact length of an Olympic marathon varied depending on the route established for each venue.

For most runners, the marathon is the longest run they have ever attempted. Many coaches believe that the most important element in marathon training is the long run. Usually recreational runners try to reach a maximum of about 20 miles (32.2 km) in their longest weekly run and about 40 miles (64.4 km) a week in total when training for the marathon. More experienced marathoners may run a longer distance, and more miles or kilometres during the week. Greater weekly training mileages can offer greater results in terms of distance and endurance, but also carries a greater risk of training injury. Most male elite marathon runners will have weekly mileages of over 100 miles (160.9 km).

Related Stories
 


Health & Medicine News

August 24, 2025

Researchers uncovered that hypothalamic neurons safeguard blood sugar overnight by directing fat breakdown, preventing hypoglycemia during early sleep. This subtle control system may explain abnormal metabolism in ...
Researchers discovered that heart failure patients with inconsistent sleep patterns were more than twice as likely to experience serious setbacks within six months. The risk remained high even when accounting for sleep disorders and other ...
Scientists have developed a groundbreaking cryo-optical microscopy technique that freezes living cells mid-action, capturing ultra-detailed snapshots of fast biological processes. By rapidly immobilizing cells at precise moments, researchers can ...
Researchers have created plant-based microbeads that trap fat in the gut, helping rats lose weight without side effects. Unlike current drugs, the beads are safe, tasteless, and easy to mix into everyday foods. Human trials are now ...
Too much salt may inflame the brain, triggering hormones that push blood pressure higher. Scientists found this pathway could explain why many patients resist current hypertension drugs, pointing toward the brain as a new treatment ...
St. Jude researchers revealed that midkine blocks amyloid beta from forming harmful clumps linked to Alzheimer’s. Without it, the damaging assemblies accelerate, but with it, growth halts. The finding could inspire new drugs that harness ...
Researchers discovered that women with Alzheimer’s show a sharp loss of omega fatty acids, unlike men, pointing to sex-specific differences in the disease. The study suggests omega-rich diets could be key, but clinical trials are ...
Scientists have uncovered a startling split in the venom of Australia’s Eastern Brown Snake. In the south, bites cause rock-solid blood clots, while in the north, they trigger flimsy clots that ...
Researchers identified over 400 genes tied to various forms of frailty, offering fresh insight into why people age differently. The study highlights six distinct pathways of unhealthy aging, opening the door to more precise, targeted anti-aging ...
A large-scale review finds that acetaminophen use during pregnancy may increase the risk of autism and ADHD in children. The strongest studies showed the clearest links, pointing to biological ...
Scientists have finally uncovered the missing link in how our bodies absorb queuosine, a rare micronutrient crucial for brain health, memory, stress response, and cancer defense. For decades, ...
Scientists at UCSF have uncovered a surprising culprit behind brain aging: a protein called FTL1. In mice, too much FTL1 caused memory loss, weaker brain connections, and sluggish cells. But when researchers blocked it, the animals regained youthful ...

Latest Headlines

updated 12:56 pm ET