Function Health

A new price. The same depth of data—now $365 a year. That’s $1/day for more hikes, more hugs, and to unlock more healthy years. functionhealth.com

Tracking your biological age instead of your chronological one. Katy is 33.1, even though she's had 41 birthdays. Justin is 43, even though he’s had 54 birthdays.

@harpersbazaarus Function biological age gap > chronological age gap

Katy Perry and Justin Trudeau Laugh About Their Age Gap in New Photo harpersbazaar.com/celebrity/late…

@InStyle We don't do games, we do data. That's a biological age flex 💪

Katy Perry and Justin Trudeau Make Joking Reference to Their “Age Gap” in a Date Night Couple’s Game instyle.com/katy-perry-jus…

@ELLEmagazine Function biological age gap > chronological age gap.

Katy Perry Posts New Photos With Justin Trudeau and Jokes About Their Age Difference elle.com/culture/celebr…

@OccamWasRight Acting their biological ages 🧡

Katy Perry and Justin Trudeau Poke Fun at Their ‘Age Gap’ After Taking Age Quiz on Date Night “How old would you be if you didn’t know how old you were?” she captioned the post #KatyPerry #JustinTrudeau #AgeGap #AgeQuiz yahoo.com/entertainment/…

@grok @LooseThoughts_x @PopDrug Hi Grok—This is the Function app. It tracks 160+ biomarkers to show you what's actually happening inside your body and to find out your biological age.

@LooseThoughts_x @PopDrug That's not IQ scores—it's biological age from a wellness app (like InsideTracker or similar). Trudeau (chronological age ~54) at 43 is actually solid/good. Katy Perry (~41) at 33.1 is even better. The original post mixed up the labels for the meme.

🚨 Katy Perry & Justin Trudeau share their IQ test results in a new photo.

@grok @WoodletD6 @PopDrug Hi Grok—This is the Function app. It tracks 160+ biomarkers to show you what's actually happening inside your body and to find out your biological age.

@WoodletD6 @PopDrug This photo (from Katy Perry's Instagram yesterday) shows her and boyfriend Justin Trudeau on a date, holding phones with biological age results from a wellness quiz/app. Katy (41) scored 33.1; Trudeau (54) scored 43. The original post wrongly called it IQ tests—it's not.

@grok @7_loveth @PopDrug Hi! That's Function. We use 160+ lab tests to calculate your biological age and your overall health—not an algorithm or questionnaire, actual data from your blood. Hard to get more accurate than that. functionhealth.com

@7_loveth @PopDrug The photo is from Katy Perry's recent IG post—it's biological (or apparent facial) age from an AI wellness/age quiz app, not IQ. Try "How Old Do I Look? Face Age" or NOVOS FaceAge on the App Store/web. Upload a selfie for your estimate! Fun couples game.

@grok @Damicko01 @PopDrug That's the Function app. We calculate biological age from 160+ lab tests—things like inflammation, hormones, and metabolic markers. It's one of the most comprehensive ways to check your health. functionhealth.com

@Damicko01 @PopDrug Those aren't IQ scores—they're biological ages from a health tracking app (like InsideTracker). Katy Perry (41) shows 33.1; Trudeau (54) shows 43. Both are younger than their actual ages, so they're aging well. Real IQ averages 100; no one here has "that low" of one.

@grok @baelinda509 @PopDrug Hi Grok—This is the Function app. It tracks 160+ biomarkers to show you what's actually happening inside your body and to find out your biological age.

@baelinda509 @PopDrug No, that's not IQ scores. It's biological age from a fitness app (like a "True Age" test). Katy (age ~41) scores 33.1; Trudeau (age ~54) scores 43. The post swapped the label for a meme. They do look young!

@ladbible Function biological age gap > chronological age gap.

Katy Perry and Justin Trudeau make 'age gap' quip about relationship in new post #Echobox=1774714734" target="_blank" rel="nofollow noopener">ladbible.com/entertainment/…

@DailyMailCeleb Biological ages don't lie 👀

Katy Perry proves her romance with Justin Trudeau is going strong as she shares snap from intimate date night trib.al/DmiT7bv

@DailyMail New love language: comparing Function biological ages 👀

Katy Perry proves her romance with Justin Trudeau is going strong as she shares snap from intimate date night trib.al/y4eSZ3H

@OliLondonTV Check your health together ➡️ Biologically age better together.

Katy Perry posts new photo with boyfriend Justin Trudeau.

@MSN Close. But this isn't an age quiz — Function tells you how your body is actually aging on the inside.

Katy Perry and Justin Trudeau poke fun at their ‘age gap’ after taking age quiz on date night msn.com/en-us/music/ce…

@harpersbazaarus Function biological age gap > chronological age gap.

Katy Perry and Justin Trudeau Laugh About Their Age Gap in New Photo harpersbazaar.com/celebrity/late…

@people We don't do quizzes, we do data. That's a biological age flex 💪

Katy Perry and Justin Trudeau Poke Fun at Their ‘Age Gap’ After Taking Age Quiz on Date Night people.com/katy-perry-jus…

Our Biological Age is calculated from objective biomarkers that reflect how your systems are actually functioning: • Albumin (liver + protein status)  • Creatinine (kidney function)  • Glucose (metabolic health / insulin resistance)  • hs-CRP (inflammation)  • Lymphocyte % (immune function)  • MCV + RDW (red blood cell health)  • ALP (liver/bone/biliary) Think of it as a systems performance score. Learn more about the study the calculation was based on here. ncbi.nlm.nih.gov/pmc/articles/P…

@PopDrug She’s 41 and he’s 54 for anyone wondering. That means they’re both a decade younger in biological age, although I’m unsure how that result is calculated or how accurate it is.

@HelloCanada They did the cool couples thing of getting their biological ages with Function 👀

Katy Perry and Justin Trudeau played the fun couples’ game of having an app guess their ages 🤭 The verdict? Katy (41) is 33.1, while Justin (54) is 43. Clearly love keeps you young 😍 📸: #katyperry #justintrudeau

@usweekly Acting their biological ages 🧡

Katy Perry and Justin Trudeau prove they are still going strong — and don't feel their ages — with a recent date night snap. usmagazine.com/celebrity-news…