Janna Breslinさんのインスタグラム写真 - (Janna BreslinInstagram)「☕️ Bed head & books 💁🏻‍♀️📚 Okay so I just finished a full week of being caffeine free. I realized I was drinking about 24 oz of coffee a day (I thought it was way less, so it was way harder than I thought). That FOR SURE didn’t help the anxiety I’ve been experiencing. Here’s some fascinating information from Ben Greenfield about caffeine and how it effects the brain… 👇🏻🤓 I suggest reading it. Do you cycle off caffeine sometimes? “Low dose caffeine can improve mental performance and protect against Alzheimer's, so you don't need to avoid it entirely. High doses of central nervous system stimulants can flood the brain with neurotransmitters, creating neurotransmitter resistance or long term receptor damage. People who frequently use coffee, tea, soda, or energy drinks actually change their brain’s chemistry and physical characteristics over time. Because it is both water and fat-soluble, caffeine can easily cross your blood-brain barrier, and as you dump more and more caffeine into your body, your brain cells grow more receptors for a neurotransmitter called adenosine. Adenosine causes feelings of tiredness, and its molecular structure closely resembles caffeine – so caffeine can easily fit into your brain cells’ receptors for adenosine. With its receptors constantly plugged up by caffeine, adenosine can no longer bind to those receptors and cause the feeling of tiredness. Unfortunately, your body's response is to create more and more adenosine receptors – so you eventually need more and more caffeine to block the feeling of tiredness – and over time, you build up a tolerance. The good news is that to kick a caffeine habit and “reset” your adenosine receptors, you only need to get through about 7-12 days of caffeine avoidance, which is why I recommend taking week-long breaks from coffee and other similar stimulants every couple months.” #coffee #blackcoffee #caffeine #decaf #brainhealth #brain #neurotransmitter #anxiety #mentalhealth #healthylife #healthymind #betterme #bossbabe #womenempoweringwomen #womenempowerment #womenentrepreneur #physicalhealth #healthybody #health #nutrition #exercise #therapy #mindset」10月11日 2時37分