Hot water is a vasodilator, meaning it expands the blood vessels, improving circulation. This can help muscles relax and reduce pain.

Although no studies have directly linked hot water to sustained improvements in circulation, even brief improvements in circulation can support better blood flow to muscles and organs.

found that switching from drinking cold water to hot water could increase weight loss. Researchers found that drinking 500 ml of water before a meal increased metabolism by 30 percent.

Hot water improves circulation and may also improve blood flow, particularly to injured muscles. No research has directly linked hot water consumption to pain relief.

However, people routinely use heat packs and hot water bottles to reduce pain. Consuming hot water may offer some internal pain relief, but it is important to note that heat can also exacerbate swelling.

Heat applied to the sinuses can alleviate pressure caused by colds and nasal allergies. Steam also helps unclog the sinuses.

Drinking hot water may help mucous move more quickly. This means that drinking hot water may encourage coughing and nose-blowing to be more productive.

When mixed with coffee or tea, hot water may offer additional health benefits. Coffee and caffeinated teas can dehydrate the body, especially at high doses, but they also offer some health benefits in moderation.

linked coffee consumption to a longer life. Other research has found a link between moderate coffee consumption and a reduced risk of Parkinson’s disease , some cancers , type 2 diabetes , some liver disease, and heart health problems.

Tea may reduce the risk of stroke , heart disease , type 2 diabetes, and liver disease. Some studies have linked tea to a reduced chance of cancer.

A soothing cup of hot water may help people manage stress and anxiety . An older study found that consumption of hot liquids, such as tea and coffee, could lower stress and reduce feelings of anxiety.

The study argues that some of the effects are due to caffeine, but that the warmth also played a role in the improved mood of participants.

Drinking hot water will not cure any diseases but, as long as the water is not scalding, the risks are minimal.

The primary risk of drinking hot water is one of being burned. Water that feels pleasantly warm on the tip of a finger may still burn the tongue or throat. A person should avoid consuming water that is near boiling temperature, and they should always test a small sip before taking a gulp.

Drinking caffeinated coffee or tea may cause a person to become overcaffeinated or jittery.