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Roshini Raj

Roshini Raj

Dr. Roshini Raj (Rajapaksa) is a board-certified gastroenterologist and Associate Professor of Medicine at NYU Grossman School of Medicine, medical contributor on the TODAY show, and co-founder of TULA Skincare.

Jul 6, 2026

28:05
What is the truth behind this whole biohacking situation? I
28:08
think what I'd like to say about this is people are spending a lot of time and energy on the latest biohack and doing the deep research.
28:15
The truth is the healthiest thing you can do is stick to a mostly plant-based diet, keep moving, exercise regularly, focus on sleep, stress management.
28:24
Those things have been proven much more forever to really extend your life.
28:29
People do biohacking, but then they're drinking every day.
28:31
For people who don't know what it means.
28:33
Tire hacking is this trend where people are really just trying to find the cure for death.
speaker_3UNKNOWN
29:29
So that's the good
13:04
What's your ideal number? And I know it's gonna vary for e- everybody, but what, what should you be looking at?
13:09
Yeah, so if you wanna think about one number that you really wanna be under, it's under 120/80.
13:16
So that...
13:16
And by the way, that's lower than what it used to be historically.
13:19
So 120 is the systolic blood pressure and 80 is the diastolic.
13:24
So what does that mean? So blood pressure is literally the pressure of the blood against the walls of your arteries, and why that's important is because your heart has to pump even harder if that pressure is high, because it's against a lot of resistance.
13:36
That could put strain on your heart, so of course increase the risk of heart attacks, as well as stroke, but also that blood pressure can cause damage to the walls of the arteries-
16:01
What does that call?
3:35
And I'd love to start out by talking about what role does gut health play in our overall health, and how has this been become a more prevalent topic here in, in more recent years?
3:47
Yeah, absolutely.
3:48
So this is certainly a passion of mine, and has been for 20 years now.
3:52
So I am, as you said, a practicing gastroenterologist, and I first learned about the microbiome over 20 years ago.
3:59
I was finishing up my training at NYU as a GI doctor, and we learned about this idea of probiotics, healthy bacteria, and the fact that we have a whole community, trillions of organisms living with- inside our gut, and that's what we call the gut microbiome, and the fact that they're really important because they exert many different effects, both potentially good or bad, on the rest of our body.
4:22
Now, when I first learned about it many years ago, we were really just talking about it within the digestive world.
4:27
And we knew that if you had an imbalanced microbiome, so too many of the bad bacteria, not as many as the good, you could develop inflammation of your colon, you could get diarrhea.

22 MINS LATER

26:11
And after fiber, what are some of the other steps that you would recommend for somebody trying to cultivate a healthy gut garden and microbiome?
25:23
with doctor's appointments who should we be calling
25:25
Yes.
25:26
So first of all, the resolution should be don't miss the appointment.
25:29
Make it.
25:29
So your primary care doctor, of course, you want to get your annual physical.
25:32
And a lot of people say, oh, I feel fine.
25:34
I don't really need to.
27:32
Get

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