@kristinakristenKristinakristenwellness

Better energy. Better aging. Better health. Know your Mitochondria. They run you. Chemistry Professor | Author Harvard Lifestyle Medicine Educator

card updated Sep 29, 2026 · 13 of 20 clips with full stats · following 94 · 51,000 likes total

Open on TikTok ↗

Engagement2.71%below typical

Account summary

@kristinakristen has 16,500 followers and 381 videos. Across the 20 parsed clips the average is 35,897 views and 1,293 likes. Engagement to views is 2.71%, which is below typical for TikTok. On the newer half of the feed the response is falling (−1.08 pp). Posts roughly 0.2 times a week. An average clip reaches 218% of the follower count.

Followers

16.5K

+0 in period

Engagement

2.71%

−1.08 pp newer half

Average views

35.9K

median 464

Likes per clip

1.3K

58 comments avg

Shares / saves

84 / 260

0.49% of viewers save

Posting rate

0.2 / wk

reach 218% of followers

Latest clips

20 collected

We evolved under the sun—not apart from it. ☀️ And inside nearly every — @kristinakristen

1700:20We evolved under the sun—not apart from it. ☀️ And inside nearly every cell are ancient light-responsive powerhouses: yo60241

Does your tan shield you from 5G? ☀️📡 It sounds ridiculous! But a fasc — @kristinakristen

1361:33Does your tan shield you from 5G? ☀️📡 It sounds ridiculous! But a fascinating 2025 study makes the question a lot more i40131

You were taught the anatomy and parts. The heart. The brain. The muscl — @kristinakristen

7.6K1:39You were taught the anatomy and parts. The heart. The brain. The muscles. The hormones. But almost no one introduced you240315

Melanin may be one of biology’s most important and most underestimated — @kristinakristen

2.1K1:35Melanin may be one of biology’s most important and most underestimated molecules. We call it “pigment.” But chemically a42143

We built a modern world our ancient biology never asked for. Your mito — @kristinakristen

1980:55We built a modern world our ancient biology never asked for. Your mitochondria still expect sunlight, darkness, movement101282

What if sunlight is a metabolic input? ☀️ A new study of 400,000+ peop — @kristinakristen

1.2K0:35What if sunlight is a metabolic input? ☀️ A new study of 400,000+ people found that greater ambient UVA was associated w40222

What if metabolism isn’t powered by food alone? ☀️ A new preprint from — @kristinakristen

4431:11What if metabolism isn’t powered by food alone? ☀️ A new preprint from Robert A.E. Fosbury, Roger Seheult, Scott Zimmerm10023

Turns out hugging trees might be more high-tech than it looks. 🌲☀️ Lea — @kristinakristen

9780:56Turns out hugging trees might be more high-tech than it looks. 🌲☀️ Leaves absorb much of the UV and visible spectrum wav8020

In 1903, Niels Ryberg Finsen won the Nobel Prize for treating disease — @kristinakristen

1551:32In 1903, Niels Ryberg Finsen won the Nobel Prize for treating disease with light. More than 120 years later, astrophysic40122

You call it adulting. Your mitochondria may disagree. 👀 Fatigue. Brain — @kristinakristen

1.8K0:40You call it adulting. Your mitochondria may disagree. 👀 Fatigue. Brain fog. The 3 PM crash. Waking up tired. 12 questio8901114

Sunlight does FAR more than make vitamin D. This is information everyo — @kristinakristen

12.1K1:59Sunlight does FAR more than make vitamin D. This is information everyone should know. Share with someone you love. ☀️20211827

What if avoiding the sun carried a mortality risk approaching that of — @kristinakristen

49.6K1:17What if avoiding the sun carried a mortality risk approaching that of smoking? A follow-up analysis from one of the larg2434613769

Bryan Johnson, and Chuando Tan…. they take staying healthy and young v — @kristinakristen

611.2K3:51Bryan Johnson, and Chuando Tan…. they take staying healthy and young very seriously! Bryan Johnson, taken longevity to a16.2K7007773.2K

Your fat cells can see. 👁️ Not with eyes—but with light-sensing protei — @kristinakristen

154Your fat cells can see. 👁️ Not with eyes—but with light-sensing proteins that can change how cells handle energy. We’ve 0000

You’re here. On this wildly improbable planet. For this tiny, spectacu — @kristinakristen

158You’re here. On this wildly improbable planet. For this tiny, spectacular moment. LOOK UP. LOVE BIG. LAUGH LOUD. BE RID0000

Two billion years of evolution. Survived mass extinctions. Witnessed t — @kristinakristen

29.1KTwo billion years of evolution. Survived mass extinctions. Witnessed the rise of humanity. And now my mitochondria are s0000

☀️ FOOD IS SUNLIGHT TAKING THE LONG WAY IN. That steak. That avocado. — @kristinakristen

155☀️ FOOD IS SUNLIGHT TAKING THE LONG WAY IN. That steak. That avocado. That apple. Different packaging. Same extraordinar0000

SHE WAS NEVER GONE. Before she was worshipped, she was loved. Before s — @kristinakristen

115SHE WAS NEVER GONE. Before she was worshipped, she was loved. Before she was diminished, she was revered. Before she was0000

🙌SHARE THIS with someone who needs it and FOLLOW for Part 2! WHAT THE — @kristinakristen

205🙌SHARE THIS with someone who needs it and FOLLOW for Part 2! WHAT THE HECK ARE YOU, ANYWAY? Seriously. Have you ever sto0000

☀️ TWO EQUATIONS. THE SECRET TO BEING ALIVE. Two of the most extraordi — @kristinakristen

485☀️ TWO EQUATIONS. THE SECRET TO BEING ALIVE. Two of the most extraordinary equations in all of science. And they’re almo0000

Engagement per clip

13 parsed clips · newest on the right · click a bar to open the clip peak: 19.7% ER

Mar 28Aug 28Sep 24

Date	Views	Likes	Comments	Shares	Saves	ER
Sep 24, 2026	170	6	0	24	1	17.65%
Sep 23, 2026	136	4	0	13	1	12.50%
Sep 18, 2026	7,558	24	0	31	5	0.73%
Sep 13, 2026	2,080	4	2	14	3	0.96%
Sep 7, 2026	198	10	1	28	2	19.70%
Sep 5, 2026	1,166	4	0	22	2	2.23%
Aug 28, 2026	443	10	0	2	3	2.71%
Aug 23, 2026	978	8	0	2	0	1.02%
Aug 19, 2026	155	4	0	12	2	10.32%
Aug 12, 2026	1,788	89	0	11	14	5.59%
Jun 17, 2026	12,100	202	1	18	27	1.83%
May 28, 2026	49,600	243	46	137	69	0.86%
Mar 28, 2025	611,200	16,200	700	777	3,246	2.89%