You Should Know that fasting, when executed correctly, isn't merely a health fad but a scientifically supported method to enhance your physical health, sharpen your focus, and improve long-term wellness

Mental Clarity & Brain Health
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Why YSK: If done carefully, fasting can provide significant benefits for both your brain and body, with more scientific backing than is commonly realized. Even if you don’t plan to try it, understanding the process might change your perspective on nutrition and health. Essentially, fasting is the practice of abstaining from food for a set period to let your body reset. During this time, the body transitions from burning glucose to utilizing stored fat for fuel. Simultaneously, it initiates autophagy, a natural cellular maintenance process that clears out old or malfunctioning cells. This process is linked to increased longevity, enhanced cognitive function, and a reduced risk of cancer.

Here’s the link for the explanation:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3106288/

Intermittent fasting is a popular approach where one only eats during specific timeframes. It has been shown to improve insulin response, decrease inflammation, and even increase BDNF, a brain protein that aids memory and mental clarity.

You can read more about those benefits here:

https://www.nature.com/articles/nrn3462

Methods include the 16:8 split (16 hours of fasting, 8 hours of eating), the 5:2 strategy (eating normally for five days and restricting for two), or fasting on alternate days.

Here’s a solid breakdown from Johns Hopkins Medicine on how those work:

https://www.hopkinsmedicine.org/health/wellness-and-prevention/intermittent-fasting-what-is-it-and-how-does-it-work

However, fasting isn’t for everyone. It’s possible to feel faint or fatigued, and it can lead to disordered eating patterns if not managed well. Individuals with diabetes, low blood pressure, or eating disorders, as well as pregnant women, should consult a medical professional before starting.

Here’s a helpful Mayo Clinic FAQ that explains when it’s not safe and what side effects to look out for:

https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/expert-answers/intermittent-fasting/faq-20441303

As with any lifestyle adjustment, the secret is to listen to your body, stay educated, and view fasting as a mindful, lasting habit rather than a quick fix.

Update: Some commenters noted that intermittent fasting might not be ideal for women. After looking into it further, it appears that hormonal differences mean men and women react differently. Thanks to those who pointed this out, and I apologize for any confusion. Women’s bodies are more sensitive to fasting and calorie restriction due to hormones like estrogen and progesterone. This doesn’t mean women can’t do it, but a more gradual approach may be necessary.

If anyone wants to read more about it, here’s another helpful article:
https://health.clevelandclinic.org/intermittent-fasting-for-women

52 Likes
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What is the link between fasting and bowel habits for those who deal with constipation or the opposite? Is it a hit-or-miss situation?

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I just want to share what my doctor told me. It can be helpful, but weight loss ultimately depends on your total calorie intake. It doesn’t matter when you eat; if you consume more than you burn, no method will work.

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I tried intermittent fasting about ten years ago and lost 20% of my weight, eventually dropping 60 pounds over two years. I fasted every other day, but I developed gallstones, which my doctor blamed on the fasting. I had to have my gallbladder removed and eventually gained 40 pounds back. Six years later, using a combination of fasting and semaglutide, I just reached a 50-pound loss yesterday after nine months. I eat between 6:00 PM and 8:30 PM and usually stick to that window. On the plus side, I don’t have to worry about gallstones anymore! lol

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Conversely, a more recent meta-analysis than the ones mentioned here found no significant difference in results between intermittent fasting and continuous calorie restriction. https://www.mdpi.com/2072-6643/15/11/2604. It’s worth noting that the relevant articles the OP provided (I didn’t pay for the one about how scents affect fly memories) compare IF to no intervention at all. Basically, the OP’s sources say IF is better than doing nothing, while mine says it’s about the same as other ways to cut calories. In conclusion, if you have a method that works, keep doing it, because switching to IF won’t necessarily be more or less effective.