Wellness
Wellness,
explained.
Browse Wellness guides from briefino.com.
Electric toothbrushes, explained.
The ADA's figure is two minutes twice a day with soft bristles, and a brush head replaced every three to four months. The Seal runs five years.
Mattresses, explained.
A mattress must hold peak heat release under 200 kW across a 30-minute test and 15 MJ in the first ten. Firmness has no federal test at all.
Smart rings, explained.
Oura publishes 5 to 8 days of battery on a 0.31-inch band, and the membership that keeps the data readable costs $69.99 a year on top.
Smartwatches, explained.
Apple's ECG app was classified by the FDA in 2018 for ages 22 and up; the blood oxygen reading on the same watch is labeled wellness, not medical.
Sunscreen, explained.
SPF is measured at 2 mg per square centimeter of skin; broad spectrum means a 370 nm critical wavelength, and water resistance is 40 or 80 minutes.
Walking pads, explained.
ASTM F2115-25 sets treadmill design parameters for ages 13 and up and requires a stop switch; UL 1647 Edition 6 covers the electrics.