Andrew found the Garmin Circa to be approximately twice the price of the Fitbit Air, yet judged to have worse tracking, a larger form factor, and an inferior app.
Where this was said
At 1:34:45 · chapter starts 1:33:00
Andrew delivers his rapid-fire 24-hour impressions of the Garmin Circa screenless fitness tracker. The good: auto sleep tracking was nearly perfect, logging sleep onset at 10:45 PM within two minutes of Andrew actually falling asleep, catching a 6-minute overnight wake period when he got up for his child, and even recording a 15-minute post-dinner nap. [1] — Andrew Manganelli "Andrew wore the Garmin Circa for 24 hours and was impressed by its pinpoint sleep tracking — it caught a 6-minute overnight wake-up and aut…" 1:33:00 The bad: the alarm dismissal UX is confusing — pressing the button snoozes rather than stops it, and there's no obvious indicator — leading to Andrew accidentally running a 60-minute active workout session during his commute. The size is the biggest issue: the puck is so wide it overhangs both sides of Andrew's wrist. DC Rainmaker's comparative review found the Circa's infrequent heart-rate sampling outside active activities means missed workout auto-detection can't be retroactively corrected, unlike the Fitbit Air or Whoop. At approximately twice the Fitbit Air's price, the Circa loses on nearly every dimension. The group agrees that mixing the Fitbit Air's form factor, the Garmin's bands, and the Whoop's data quality would be their ideal wearable.
Andrew wore the Garmin Circa for 24 hours and was impressed by its pinpoint sleep tracking — it caught a 6-minute overnight wake-up and auto-logged a post-dinner nap. But the form factor is too wide, the app is confusing, and at twice the price, the Fitbit Air wins.
Casio has made miniature versions of its classic watches — including G-Shock designs — sized to wear on a finger. A new health-tracking version is coming to China. It has a one-day battery. The hosts cannot believe this is a real product.
Making the first hour of your day high-cortisol and the last hour low-cortisol is described as the single most impactful daily habit for mood, focus, alertness, stress resilience, and sleep quality.
A Washington University in St. Louis study found that a great night's sleep produces attention-improvement effects effectively equal to Ritalin.
In the 4 to 6 hours after exercise, dopamine and norepinephrine are elevated, making you more alert and better able to focus — unless you've exercised to exhaustion.
The physiological sigh — two big inhales followed by a full exhale — was discovered by physiologists in the 1930s and is the fastest way to reduce autonomic arousal.
Doing just 10 deliberate exhales throughout the day can significantly elevate heart rate variability by the evening, by repeatedly activating the vagal sinoatrial node pathway.
For nicotine to have a genuine cognitive-enhancing effect rather than merely rescuing withdrawal deficit, Huberman recommends using it only once or twice per week at 3–6 mg.
Because vaping can be done anywhere and is more palatable, people consume far more nicotine via vaping than they ever did smoking, potentially making vaping more dangerous in aggregate despite being safer per puff.
Huberman reported that two injections of approximately 100–200 micrograms of BPC-157 eliminated persistent shoulder pain that had resisted months of other interventions.
Huberman reported that on nights he used the peptide pinealon, he achieved 2.5 to 3 hours of REM sleep inside 6 hours — an unusually high proportion normally only found in the final hours of longer sleep.
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