u/attilathehunn

> Time-restricted eating improves quality of life, heart rate, and mitochondrial function in patients with postural orthostatic tachycardia syndrome. An open-label pilot study

> Abstract

> Postural orthostatic tachycardia syndrome (POTS) is characterized by an abnormal increase in heart rate upon standing, leading to symptoms such as dizziness, fatigue, and rapid heart rate. Time-restricted eating (TRE), which limits caloric intake to an 8–10 h daily window, has been shown to decrease inflammation and improve immune, autonomic, and mitochondrial function, as well as cardiometabolic parameters. This single arm pilot study evaluated the effects of TRE on quality of life (QOL), heart rate, and mitochondrial function in 20 participants with POTS (≥ 30 bpm increase in upright heart rate) and a baseline dietary window of ≥ 12 h. Following a 2-week baseline monitoring period, participants underwent a 12-week TRE intervention. Pre- and post-intervention assessments included QOL questionnaires, a 10-minute stand test, and plasma mitochondrial analysis. TRE significantly reduced heart rate increase upon standing (mean decrease: 11 bpm, p < 0.001) and improved QOL metrics, as assessed by the Malmö POTS Symptom Score Survey (MAPS) and the General Health Questionnaire Short Form-36 (SF-36). Notable improvements include POTS symptom severity (p < 0.0001), physical functioning (p = 0.02), and energy/fatigue (p < 0.01). Additionally TRE increased mitochondrial-derived ATP production. These findings suggest TRE as a promising lifestyle intervention to improve QOL, heart rate, and mitochondrial function in POTS patients.

https://www.nature.com/articles/s41598-025-16836-2

Time-restricted eating, put simply only having one meal per day, improved POTS according to this study. This is a simple intervention that anyone can try at home. It seems unlikely that one could be harmed from it so theres not much of a downside to giving it a try.

Caveats: small study with only n=20, not blinded

https://tennisuptodate.com/wta/yet-another-withdrawal-for-emma-raducanu-out-of-madrid-open

> Emma Raducanu's woes continue with the Brit deciding to withdraw from next week's Madrid Open as expected due to her continued struggle amid a viral illness she suffered during Cluj all the way back in February.

https://www.theguardian.com/sport/2026/apr/19/emma-raducanu-withdraws-madrid-open-tennis

> Emma Raducanu will extend her absence from the WTA Tour because of a viral illness to two months after she withdrew from the coming week’s Madrid Open.

https://www.bbc.co.uk/sport/tennis/articles/cwyx2d167n1o

> The British number one has struggled to shake off a viral illness which first affected her at tournaments in the Middle East in February.