Iron Supplementation: When Ferritin Has Meaning, and Why the Dosage Advice Changed
Read moreCalifornia's Packaging Law Went Live May 1: What It Asks of Beauty Brands
Read more
SPF 100 Versus SPF 30: The Numbers, Honestly Compared
SPF 30 filters about 97 percent of UVB and SPF 100 about 99 percent — and the real-world gap lives in how much you actually apply.
Wellness
The 10,000-Step Question: What the Evidence Actually Supports
A pedometer sold the number in 1965. The federal guidelines are written in minutes, and the mortality research plateaus far lower — here is what each figure really describes.
Wellness
Gratitude Journaling and Mental Health: The Effect Size, Honestly
Randomized trials put gratitude journaling in the small-to-moderate range for well-being — around 0.3 in meta-analytic terms — with weaker and less consistent effects on depression and anxiety symptoms.
Wellness
Hydration Myths, Measured: How Much Water You Actually Need
The eight-glasses rule has no scientific source; the 2004 dietary reference puts total water at 2.7 liters for women and 3.7 for men — most of it from drinks you already consume, thirst doing the regulating.
Wellness
A Week Without Feeds: What Digital-Detox Experiments Actually Find
Randomized trials of one-week social media breaks show modest, real gains in mood and anxiety — with effects that fade after resuming and one stubborn exception: screen time itself barely moves.
Fitness
See all →
Zone 2 Cardio: What the Research Actually Supports
The conversational-pace training trend has taken over group runs from Prospect Park to the West Side Highway. A 2025 review in Sports Medicine says the mitochondria math behind it is thinner than the hashtags suggest.
The Anabolic Window: Why the 30-Minute Protein Myth Mostly Doesn't Hold
Total daily protein dominates the timing question, and the research window, where it exists at all, is measured in hours on both sides of training — not minutes.
Fitness Trackers and Step Accuracy: What Validation Studies Actually Measured
Step counts are the most trustworthy number on your wrist; heart-rate estimates trail behind, and calorie figures are the least reliable of all.
Lifestyle
SPF Numbers, Decoded: What the Percentages on the Bottle Actually Mean
The math behind SPF 15, 30, and 50 — and why doubling the number doesn't double the protection.
The Price of Wellness in New York: What a Year of Self-Care Actually Costs in 2026
A representative New York wellness year — gym, a class pack, a massage each quarter, and a supplement shelf — runs roughly $3,500 to $9,000, against a global wellness economy the institute trackers value at $6.3 trillion.
Sleeping in a Heat Wave: Which Hot-Weather Tips the Evidence Actually Supports
Sleep research puts the comfortable bedroom near 66 to 70 degrees Fahrenheit, and trials show heat above that range cuts REM and deep sleep — while a warm bath taken an hour or two before bed reduces sleep onset.
Beauty News
The FDA Proposed Standardized Asbestos Testing for Talc Cosmetics
A December 2024 proposed rule would require standardized testing of talc-containing cosmetics — the first federal method of its kind.
The Fragrance Line on Every Label: What MoCRA's Allergen Rule Will (and Won't) Change
A 2022 law requires FDA to make brands disclose fragrance allergens on cosmetic labels. Here's why "fragrance" still means undisclosed today, and how far the rule has actually gotten.
Estée Lauder and Puig Called Off the Year's Biggest Beauty Merger
The Estée Lauder Companies and Puig confirmed on May 21, 2026 that they terminated discussions on a potential combination that would have created a beauty group with roughly $20 billion in annual sales — a collapse that redraws the industry's consolidation math.
Health News
MoCRA's First Renewal Deadline Has Passed: What It Means for Beauty Brands
The federal law that put facility registration and product listing on a two-year clock just cleared its first renewal cycle. Here's what changed, who's still exempt, and what the numbers show.
WHO: Up to 45% of Dementia Risk Is Preventable
New guidelines issued July 15, 2026 put a number on what lifestyle and environment can do — and, for the first time, name air pollution as a modifiable dementia risk.
Hospital Price Transparency Gets Teeth This Year
As of April 1, 2026, CMS began enforcing its tightened price-transparency rule, with penalties up to $5,500 a day — and hundreds of hospitals already on notice.
Latest
Essential Plan Cuts: Who Lost Coverage on July 1
New York lowered Essential Plan eligibility from 250% to 200% of the poverty level on July 1, 2026, ending $0-premium coverage for roughly half a million New Yorkers under federal cuts.
Iron Supplementation: When Ferritin Has Meaning, and Why the Dosage Advice Changed
A ferritin below 15 micrograms per liter defines deficiency by the WHO's 2020 guideline — and a 2017 study found taking iron every other day absorbs more than taking it daily.
California's Packaging Law Went Live May 1: What It Asks of Beauty Brands
CalRecycle's final regulations under SB 54, the country's most sweeping packaging extended-producer-responsibility law, took effect May 1, 2026 — and cosmetics brands selling in California are counted among the producers who must join the system and report.
Heat Kills 500 New Yorkers a Year, City Report Finds
The Health Department's 2026 heat mortality report, released in mid-June, counts about 500 heat-related deaths annually — and most happen on days that never make headlines.