Why Your Brain Needs Exercise
The evolutionary history of humans explains why physical activity is important for brain health
More from Scientific American
The Language of Science
How the words we use have evolved over the past 175 years
The Elusive Origin of Zero
Who decided that nothing should be something?
The Role of Luck in Life Success Is Far Greater Than We Realized
Are the most successful people in society just the luckiest people?
Why Thinking Hard Wears You Out
Concentrating for long periods builds up chemicals that disrupt brain functioning.
You May Also Like
Slow down, it’s what your brain has been begging for
It’s no small task to live a life of sustained attention. So slow down, and give your brain a break to do its work
«Paying attention to the moment during a walk shifts focus away from the internally generated, anxiety-provoking scenarios, creating much-needed space.»
For neuroscience, magic opens a doorway to multiple realities
The transition in magic from possible to impossible can answer some of the key questions in philosophy and neuroscience
Depression is probably not caused by a chemical imbalance in the brain
A new shows there’s no clear evidence that depression is caused by abnormally low levels of serotonin in the brain.
«drug trials show that antidepressants are barely distinguishable from a placebo (dummy pill) when it comes to treating depression.»
A Path to Well-Being: Get to Know Your Neurotransmitters
In honor of Mental Health Awareness Month, learn about the brain chemicals that affect mood and how to make them work for you.
«When we get caught up in anxiety, for example, serotonin and dopamine drop, and stress hormones such as adrenaline and cortisol spike»
How to maintain a healthy brain
Adopt these lifestyle changes and you will not only sharpen your mind today but also reduce your risk of dementia later on
«Train your body Just as mental health and brain health are deeply entwined, so too are your overall physical health and your brain health»
What is Refind?
Every day Refind picks 5 links from around the web for every user, tailored to the user’s interests. Picking only a handful of links means focusing on what’s relevant and useful. We favor timeless pieces—links with long shelf-lives, articles that are still relevant one month, one year, or even ten years from now. These lists of the best resources on any topic are the result of years of careful curation.
How does Refind curate?
It’s a mix of human and algorithmic curation, following a number of steps:
- We monitor 10k+ sources and 1k+ thought leaders on hundreds of topics—publications, blogs, news sites, newsletters, Substack, Medium, Twitter, etc.
- In addition, our users save links from around the web using our Save buttons and our extensions.
- Our algorithm processes 100k+ new links every day and uses external signals to find the most relevant ones, focusing on timeless pieces.
- Our community of active users gets 5 links every day, tailored to their interests. They provide feedback via implicit and explicit signals: open, read, listen, share, add to reading list, save to «Made me smarter», «More/less like this», etc.
- Our algorithm uses these internal signals to refine the selection.
- In addition, we have expert curators who manually curate niche topics.
The result: lists of the best and most useful articles on hundreds of topics.
How does Refind detect «timeless» pieces?
We focus on pieces with long shelf-lives—not news. We determine «timelessness» via a number of metrics, for example, the consumption pattern of links over time.
How many sources does Refind monitor?
We monitor 10k+ content sources on hundreds of topics—publications, blogs, news sites, newsletters, Substack, Medium, Twitter, etc.
Can I submit a link?
Indirectly, by using Refind and saving links from outside (e.g., via our extensions).
How can I report a problem?
When you’re logged-in, you can flag any link via the «More» (...) menu. You can also report problems via email to hello@refind.com
Who uses Refind?
100k+ smart people start their day with Refind. To learn something new. To get inspired. To move forward. Our apps have a 4.9/5 rating.
Is Refind free?
Yes, it’s free!
How can I sign up?
Head over to our homepage and sign up by email or with your Twitter or Google account.