Here in Boston, we drink tea mostly because it tastes good and slows the day down. Researchers keep studying what else it might do. Below are four studies published between July 2025 and October 2026, explained in plain language. Each one shows a link between tea and a health result. None of them proves that tea causes that result, and we point out the limits of each one.

Photo: Bert Christiaens / Pexels

1. Tea and blood pressure

Journal: Frontiers in Nutrition, August 2026 (systematic review and meta-analysis)

Researchers combined 20 observational studies with about 320,000 adults in total. In the four studies that followed people over time, regular tea drinkers were about 13% less likely to develop high blood pressure than people who did not drink tea. The link was strongest at lower intakes and leveled off at higher intakes, so more cups did not keep adding benefit. In the subgroup analyses, the link was stronger among black tea drinkers.

Limits: All of the studies were observational, and their results varied a lot. The authors write that a clear protective effect "cannot be confirmed."

Read the study

2. Tea and bone strength over 13 years

Journal: The American Journal of Clinical Nutrition, October 2026 (prospective cohort study)

A team in Guangzhou, China, measured bone mineral density in 1,708 adults four times over 13 years. People who drank tea at a moderate frequency generally had the highest bone density scores across the whole body, lower spine and hip. People with higher blood levels of certain tea catechins (EGCG and ECG) also tended to have better bone measurements.

Limits: The differences were small, and the blood-marker results did not rise in a straight line. The study was done in one region of China, and as an observational study it cannot show cause and effect.

Read the study

3. Unsweetened tea and longer life

Journal: Frontiers in Nutrition, July 2025 (prospective cohort study)

Using data from 195,361 UK Biobank participants followed for a median of 13.6 years, researchers compared people who drank no tea with people who drank tea unsweetened, with sugar, or with artificial sweeteners. People who drank about 3.5 to 4.5 cups of unsweetened tea a day had a 20% lower risk of dying from any cause during the study, plus lower risks of dying from heart disease and cancer. Tea with sugar or artificial sweeteners showed no consistent link with lower risk.

Limits: Tea intake came from short dietary recalls, and tea drinkers may differ from non-drinkers in other ways. The link was U-shaped, so the lowest risk sat at a moderate intake, not at the highest one.

Read the study

4. Green tea catechins, exercise and leg strength

Journal: Archives of Gerontology and Geriatrics, August 2026 (randomized, placebo-controlled trial)

In Japan, 78 adults aged 60 and older who felt they were getting weaker or slower all took part in group exercise classes for 24 weeks. Half also drank a catechin-enriched green tea each day (613 mg of catechins), and the rest drank a placebo drink. The green tea group gained more knee-extension (thigh) strength.

Limits: There was no difference between the groups in overall physical performance tests or muscle mass. Only 51 people completed the trial. The tea used was specially enriched with catechins, more than a typical cup provides, and the study was partly funded by a tea company whose employees were co-authors.

Read the study

What this means for your cup

• Moderate and regular seems to be the pattern. In three of these studies, the best results came at moderate intake, not the highest.

• Try it plain. The UK Biobank study linked lower risk with unsweetened tea only. A naturally flavorful tea makes skipping the sugar easy.

• Tea works alongside a healthy lifestyle. In the strength trial, everyone exercised, and the tea was an addition.

A few teas from our shop to brew this week:

• Earl Grey: a classic black tea with bergamot, bright enough to enjoy without sugar.

• Jasmine Dragon Pearls: hand-rolled green tea with a natural floral sweetness.

• Matcha Samidori: powdered green tea, where you drink the whole leaf.

This post is for general information only and is not medical advice. Please talk with your doctor before making changes to your diet or health routine, especially if you take medication or are sensitive to caffeine.

Cold brew tea has been showing up everywhere lately, and I get why. It tastes clean and refreshing, and there's a health angle too. So let's talk about what's actually in the glass: the health benefits of cold brew tea, how it's different from a regular hot-brewed cup, and why the brewing process and temperature matter so much.

Most of the good stuff in tea comes from its antioxidants and phytonutrients. The big three are catechins, theaflavins, and thearubigens. These compounds are behind benefits like better cognitive function and help with weight management.

Polyphenols are one of the most important antioxidants in tea, and they carry a lot of health benefits. Here's where cold brew gets interesting. It ends up with more polyphenols than hot tea, simply because of how it's made. Cold brew steeps at low temperatures with little to no heat. Hot tea steeps in hot water, and that heat can bring the polyphenol level down. Polyphenols have been found to have some real potential benefits, like reducing inflammation, preventing damage to DNA, and lowering the risk of cancer and cardiovascular disease.

Catechins are another antioxidant in tea with plenty of benefits, but they're a little fragile. Heat them and they can break down, which means you get less out of them. That's the catch with hot-brewed tea. Cold brew stays at a low temperature, so the catechins stay intact. Studies have shown the catechins in cold brew tea can reduce the risk of heart disease, improve cholesterol levels, and lower blood pressure.

Then there are theaflavins, a third antioxidant tied to a whole range of health benefits. Studies have shown they can reduce inflammation and oxidative stress, both of which can lead to chronic disease. They've also been found to reduce the risk of cancer and improve liver health. Because cold brew is made at a lower temperature, you get more theaflavins than you would from hot tea, and more of the benefits that come with them.

Thearubigens round out the list. Like theaflavins, they've been shown in studies to reduce inflammation and oxidative stress. They also have antiviral activity and can improve blood pressure. And once again, there are more of them in cold brewed tea than in hot, thanks to that lower brewing temperature.

So that's the case for cold brew. It's an excellent source of polyphenols, catechins, theaflavins, and thearubigens, all antioxidants linked to a long list of health benefits. Since the water never gets hot, those compounds are less likely to break down, and more of the good stuff makes it into your glass. Honestly, it's one of the best ways I know to get the health benefits of tea.

There are many good reasons to drink tea. Drink tea for its good taste and to boost energy are the primary reasons why tea is the most consumed beverage in the world.  However, to the health conscious crowd, tea drinking is not only pallet pleasing but also beneficial to our health. Let's scroll on to find out why.

• Tea is very rich in Antioxidants. Tea has one of the highest contents of flavonoids among common food and beverage products. Catechins are the largest type of flavonoids in tea leaves. While many scientific researches have mixed conclusion on the effects of antioxidants, the antioxidants in tea might help protect against cancer.

• Tea energizes us with its caffeine but in a less abrupt way then coffee does. After drinking tea, the caffeine is released into our body more slowly. So the result is a gentle and longer lasting boost of energy.

• Tea could be beneficial to the cardiovascular system. Researches have showed that tea drinking may associate with a reduced risk of stroke. Research also showed that long-term tea consumption can help lower the cholesterol in our body. In short, tea might be very beneficial to our heart.

• Tea may help protect against age-related cognitive impairment/decline and dementia later in life, based on correlations found in epidemiological studies.

• Tea can help boost metabolism and exercise endurance. Scientists have found that the antioxidant rich tea might help speed up metabolism and increase our body's ability to burn fat as fuel.

• Tea could help control blood sugar. Studies suggest that tea drinking might help our body tometabolize sugar better.

• Tea can have immune boosting effects on our body. Again, because of all the antioxidants tea has, tea might be beneficial to our immune system to fight against common cold and flu.

 In conclusion, moderate long-term tea drinking could be very beneficial to our health. Let's brew some tea now. Enjoy!