Christina Stiehl

SELF • 17th April 2026

Can You Actually ‘Boost’ Your Metabolism?

Few bodily processes are as focused on and as misunderstood as metabolism. It seems like just about everyone wants to “boost” or “speed up” their metabolism in the hopes of burning more calories and, as a result, losing body fat. In reality, this is not an easy task.

SELF • 2nd February 2026

The Problem With That 10,000-Step Goal

10,000 steps a day is often hailed as the gold standard. It somehow feels both achievable and momentous, helping you improve overall health, burn calories, and possibly even boost longevity. However, research has shown that you may not need to move quite that much to reap the wellness benefits of increased activity.

SELF • 23rd January 2026

Why I’m Choosing Not to Take GLP-1s, Even Though Everyone Expects Me To

If I’m a good candidate for GLP-1s and I’m looking to improve my body composition, why would I pass up a medication that’s clinically proven to be much more effective than diet and exercise alone?

Lingo • 1st October 2025

How does stress affect your glucose (blood sugar) levels?

Unmanaged stress can negatively impact your glucose levels and increase the risk of chronic conditions like heart disease and diabetes. Luckily, you can take steps to reduce stress through regular exercise, finding relaxing activities, spending time with loved ones, and more.

Lingo • 1st October 2025

How to sleep better: Tips for a better sleep

Struggling with sleep? From balancing your meals to calming evening drinks, follow our 8 top tips to better understand and manage your path to quality sleep.

Lingo • 1st October 2025

What are ultra-processed foods? Common food examples

Learn the differences among processed foods in our modern diet, including what ultra-processed foods (UPF) are, examples, and how often you should be eating them.

Lingo • 1st October 2025

What is the normal glucose (blood sugar) level range?

Learn what is considered a normal glucose (blood sugar) level range for adults, why glucose levels are important, and how you can measure your own levels.

Lingo • 1st October 2025

Why wear a continuous glucose monitor if you don’t have diabetes?

Continuous glucose monitors (CGMs) have historically been used by people with diabetes to help monitor and manage their glucose levels.  Emerging research has shown a number of health benefits to limiting glucose spikes, which can be monitored by using a CGM, even if you don't live with diabetes.

Lingo • 13th August 2025

How to avoid a glucose (blood sugar) spike

Glucose spikes, also known as blood sugar spikes, are a marked rise in the amount of glucose in your blood. This can lead to negative health consequences if they occur frequently.

Lingo • 13th August 2025

What is a glucose spike?

Glucose spikes, also known as blood sugar spikes, occur when you have more glucose in your bloodstream than your cells can take in for energy. Glucose spikes can negatively impact your sleep, energy, mood, and focus, which is why managing spikes day-to-day also has benefits.

Noom: Lose weight and keep it off. • 6th February 2025

The best PCOS diet: What to eat (and what to avoid)

Polycystic ovary syndrome (PCOS) isn’t curable, but dietary changes and physical activity may help with symptoms. Eating nutritious, whole foods may reduce PCOS symptoms and help with weight loss. Limit highly processed foods, as well as foods that spike your blood sugar and increase inflammation.

Noom: Lose weight and keep it off. • 6th February 2025

Polycystic ovary syndrome (PCOS): Symptoms, diagnosis, and treatment

Polycystic ovary syndrome (PCOS) is a highly impactful and under-recognized hormonal and metabolic condition. There’s no cure for PCOS, but lifestyle modifications and medicine can help you manage your symptoms.

Mental • 4th January 2024

A Sober Curious Guide to Mindful Drinking

You don’t need to have alcohol use disorder for booze to batter your wellbeing. There’s an often-overlooked connection between alc, anxiety, and panic attacks—which our writer discovered first-hand as she replaced weekend bingeing with mindful drinking.

Well+Good • 11th April 2023

Curious About Contrast Bathing? Here’s What It’s Like—And Why It Can Be Beneficial for Your Overall Health

Research shows that subjecting the body to drastic changes in temperatures may have physical benefits, such as pain relief, reduced inflammation, and improved circulation. But what about alternating between extreme temperatures? This method of switching from hot to cold (or cold to hot) temperatures, often going back and forth several times, is called contrast therapy, or contrast bathing, and has its own set of purported health benefits.

Noom • 14th February 2023

How to identify—and break—a weight loss plateau in 2023

When people set out to lose weight, they might assume the numbers on the scale will go down steadily. In reality, it’s more common for your weight to fluctuate—you’ll go up and down. But if you’re following your program successfully, you should be able to steadily lose weight in a descending trajectory overall.

Noom • 14th February 2023

How I learned to overcome all-or-nothing thinking

In my three decades of being alive, I’ve learned a lot about myself. I do better when I have structure and a set schedule, it takes me about two hours to get fully ready (I have an intense skincare routine!), and I’m definitely someone who “sweats the small stuff.” I’ve had anxiety for as long as I can remember, and when I’m feeling stressed out, I tend to throw my hands up and abandon my routine and healthy habits.

The Well • 13th February 2023

How to Deal with Menopausal Symptoms Naturally

Whether you dread it or welcome it, reaching menopause (defined as going 12 months without a period) is an inevitable life stage for every woman. The average age of onset is 51, though it can happen in your 40s or in rare cases, even earlier. The transition stage just before menopause, when your period may become irregular or unpredictable, is called perimenopause.

What to Expect • 24th June 2019

Best High-Protein Pregnancy Snacks

You’ve probably heard that it’s important to eat enough protein each day, especially because this macronutrient is the building block of bones, muscles and skin. Because the amino acids contained within protein are essential to healthy cell growth, eating enough protein during pregnancy is important both for fetal development and the overall health of the pregnant person while the body is undergoing so much change.

The Well • 13th February 2023

9 Natural Ways to Soothe PCOS Symptoms

If you are one of the 5 million women with polycystic ovary syndrome (known as PCOS), you know how tormenting the symptoms can be — we're talking weight gain, acne and excess facial hair. Additionally, PCOS is typically marked by a lack of ovulation, which can make getting pregnant difficult.

POPSUGAR Fitness • 20th December 2021

Yes, Women Can Build Lean Muscle Quickly — These Experts Explain How

There are no shortcuts for building muscle, but that doesn't mean you can't learn how to build muscle fast — you'll just need to implement a few key strategies and stay very consistent with your routine. And no, before you ask, building muscle for women doesn't mean automatically mean you'll get "bulky." (Reminder: there's also nothing wrong with that.) You can build lean muscle, add muscle tone and strength, and look more defined with strategic training and nutrition.