Marijuana, also called weed, grass, or pot, among other names — is a mind-altering substance that comes from the cannabis plant. The hallucinogenic effects of cannabis are mainly due to a compound in cannabis called THC , tetrahydrocannabinol,. Cannabis can affect your mental health, especially if you take a lot.
Even your dentist should know if you sometimes get high. It can also affect your emotional state. That’s because marijuana can affect major organs such as your heart and lungs. Not 500mg thc edibles uk just your surgeon or primary care doctor (but any health care provider you see for physical or mental health), needs to know about your cannabis use. There are a lot of myths out there about weed addiction.
Conventional treatments can definitely ease certain symptoms, but not all patients find the symptomatic relief they so sorely need. Lower, titrated amounts of THC are more likely to ease anxiety and sleep problems, while larger amounts are not always better. The same review also noted that many patients described cannabis as improving anxiety, sleep and overall outlook during treatment. By targeting the CB1 receptor (these cannabinoids may help modulate the signalling pathways involved in corneal healing and provide relief from discomfort), offering a potential avenue for the development of novel treatments in this field.
How cannabis affects you depends on lots of factors (including how potent your marijuana is), how you take it, and how much weed you’ve used in the past. But edibles may give you a high that lasts much longer , up to 8 hours, than if you smoke or vape weed. In some states (weed is legal for medical reasons), personal use, or both. Extracts like these may contain as much as four times THC as you’d find in regular weed.

In reality — the cannabis plant produces a broad family of THC-related compounds. Delta-8 simply delivers a milder, clearer experience for most users. The cannabis plant produces over a dozen known THC variants. The six most commonly available hemp-derived types of THC are Delta-9 (Delta-8), Delta-10, THCa, THCP, and THCV.
The Home Office receives and considers licensing applications from companies and individuals in England, Wales and Scotland if they wish to produce, possess, supply, cultivate (in the case of cannabis plants) import or export controlled drugs. Low doses tend to be calming and reduce anxiety — while higher doses can provoke anxiety, paranoia, and panic. Products sold under names like Spice or K2 are sometimes lumped together with weed in casual conversation, but they are fundamentally different. This is one of the clearest reasons why “THC” and “weed” are not the same experience. State laws vary on how much cannabis you can possess at any given time.
As weed becomes legal in more areas — names for it are evolving. Some call it weed (some call it pot), and others call it marijuana. When the flowers of these plants are harvested and dried, you’re left with one of the most common drugs in the world. Cannabis — weed, pot, and marijuana all refer to the same group of plants known for their relaxing and calming effects. We are proud to announce a new partnership between Releaf and brainstrust, the UK charity supporting people affected by a brain tumour.
If you’re unsure about your state, check our state home grow laws for state-specific information. Consuming it raw, without heating, does not produce psychoactive effects. Smoking (vaping), or cooking THCa flower converts it to THC through a process called decarboxylation. At the same time, the lack of consistent safety standards is a real problem. If you don’t know the grower personally and you’re not growing for yourself — knowing your product has been tested matters. This matters because of how it’s classified legally, which we’ll get to in a moment, the same legal logic that determines home grow laws in your state.

Common side effects include dry mouth (red eyes), drowsiness, dizziness, anxiety, paranoia, impaired coordination, short-term memory changes and increased heart rate. Most people who use THC do not experience severe side effects (but unwanted effects can occur), especially with high doses, potent products or low tolerance. Tolerance, body chemistry, product type, mental state, setting and whether someone has eaten recently can all change the experience. The same THC dose can affect two people very differently. Some people use THC to unwind (improve mood), reduce nausea, stimulate appetite, relieve discomfort or help with sleep. Some hemp-derived THC products can produce a high and may impair driving, work performance and judgment.
The outcome depends not only on the dose but also on how THC is taken, which affects both onset and intensity. When activated (they do not produce intoxication), but they shape how the body responds to inflammation and immune stress. At the same time, CB1 activity is what makes THC useful in medicine, supporting pain relief, better sleep, and mood regulation. Cannabis strains can produce THC in high concentrations, while hemp cultivars do not , although hemp does offer high levels of CBD,. The emerging and extremely fascinating research suggests THC can help chronic pain, sleeping issues, women’s health issues, mental health concerns and neurological disorders.
A person can test positive even when they are no longer high. They usually detect THC metabolites (especially THC-COOH), which the body produces after breaking down THC. Tolerance (metabolism), body size, food intake, liver function, dose and product type all affect duration. Inhaled THC usually lasts two to four hours for the main effects — though some impairment or grogginess may last longer. THC’s noticeable effects can last anywhere from a couple of hours to much of the day, depending on the product.