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Cannabidiol is a popular natural remedy used for many common ailments.

Better known as CBD, it is one of the 104 chemical compounds known as cannabinoids found in the cannabis or marijuana plant, Cannabis sativa (1).

Tetrahydrocannabinol (THC) is the main psychoactive cannabinoid found in cannabis, and causes the sensation of getting “high” that’s often associated with marijuana. However, unlike THC, CBD is not psychoactive.

This quality makes CBD an appealing option for those who are looking for relief from pain and other symptoms without the mind-altering effects of marijuana or certain pharmaceutical drugs.

CBD oil is made by extracting CBD from the cannabis plant, then diluting it with a carrier oil like coconut or hemp seed oil.

It’s gaining momentum in the health and wellness world, with some scientific studies confirming it may help treat a variety of ailments like chronic pain and anxiety.

This article reviews seven science-based health benefits of CBD oil and also explains the potential risks involved with using it.

1. May Relieve Pain
CBD Oil and Cannabis Leaf

Marijuana has been used to treat pain as far back as 2900 B.C. (2).

More recently, scientists have discovered that certain components of marijuana, including CBD, are responsible for its pain-relieving effects.

The human body contains a specialized system called the endocannabinoid system (ECS), which is involved in regulating a variety of functions including sleep, appetite, pain and immune system response (3).

The body produces endocannabinoids, which are neurotransmitters that bind to cannabinoid receptors in your nervous system.

Studies have shown that CBD may help reduce chronic pain by impacting endocannabinoid receptor activity, reducing inflammation and interacting with neurotransmitters (4).

For example, one study in rats found that CBD injections reduced pain response to surgical incision, while another rat study found that oral CBD treatment significantly reduced sciatic nerve pain and inflammation (56).

Several human studies have found that a combination of CBD and THC is effective in treating pain related to multiple sclerosis and arthritis.

An oral spray called Sativex, which is a combination of THC and CBD, is approved in several countries to treat pain related to multiple sclerosis.

In a study of 47 people with multiple sclerosis, those treated with Sativex for one month experienced a significant improvement in pain, walking and muscle spasms, compared to the placebo group (7).

Another study found that Sativex significantly improved pain during movement, pain at rest and sleep quality in 58 people with rheumatoid arthritis (8).

SUMMARYCBD, especially in combination with THC, may be effective in reducing pain associated with diseases like multiple sclerosis and rheumatoid arthritis

2. Could Reduce Anxiety and Depression

Anxiety and depression are common mental health disorders that can have devastating impacts on health and well-being.

According to the World Health Organization, depression is the single largest contributor to disability worldwide, while anxiety disorders are ranked sixth (9).

Anxiety and depression are usually treated with pharmaceutical drugs, which can cause a number of side effects including drowsiness, agitation, insomnia, sexual dysfunction and headache (10).

What’s more, medications like benzodiazepines can be addictive and may lead to substance abuse (11).

CBD oil has shown promise as a treatment for both depression and anxiety, leading many who live with these disorders to become interested in this natural approach.

In one study, 24 people with social anxiety disorder received either 600 mg of CBD or a placebo before a public speaking test.

The group that received the CBD had significantly less anxiety, cognitive impairment and discomfort in their speech performance, compared to the placebo group (12).

CBD oil has even been used to safely treat insomnia and anxiety in children with post-traumatic stress disorder (13).

CBD has also shown antidepressant-like effects in several animal studies (1415).

These qualities are linked to CBD’s ability to act on the brain’s receptors for serotonin, a neurotransmitter that regulates mood and social behavior.

SUMMARYUsing CBD has been shown to reduce anxiety and depression in both human and animal studies.

3. May Alleviate Cancer-Related Symptoms

CBD may help reduce symptoms related to cancer and side effects related to cancer treatment, like nausea, vomiting and pain.

One study looked at the effects of CBD and THC in 177 people with cancer-related pain who did not experience relief from pain medication.

Those treated with an extract containing both compounds experienced a significant reduction in pain compared to those who received only THC extract (16).

CBD may also help reduce chemotherapy-induced nausea and vomiting, which are among the most common chemotherapy-related side effects for those with cancer (17).

Though there are drugs that help with these distressing symptoms, they are sometimes ineffective, leading some people to seek alternatives.

A study of 16 people undergoing chemotherapy found that a one-to-one combination of CBD and THC administered via mouth spray reduced chemotherapy-related nausea and vomiting better than standard treatment alone (18).

Some test-tube and animal studies have even shown that CBD may have anticancer properties. For example, one test-tube study found that concentrated CBD induced cell death in human breast cancer cells (19).

Another study showed that CBD inhibited the spread of aggressive breast cancer cells in mice (20).

However, these are test-tube and animal studies, so they can only suggest what might work in people. More studies in humans are needed before conclusions can be made.

SUMMARYThough CBD has been shown to help reduce symptoms related to cancer and cancer treatment, and may even have cancer-fighting properties, more research is needed to assess its efficacy and safety.

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