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10 Surprising Facts About Medical Marijuana You Need to Know!
Cannabis has a fascinating story that stretches across cultures, continents, and centuries. Long before modern clinics and regulations, people were already exploring this plant for healing. From ancient China to Health Canada’s medical cannabis framework today, here are ten surprising facts about medical marijuana you might not know.
1. Medical cannabis has been used for over 5,000 years
The first recorded use of cannabis as medicine dates back to ancient China. Emperor Shennong tested herbs on himself and documented cannabis for treating gout, rheumatism, and pain — proof that this plant’s healing history runs deep.
2. Ancient Egyptians used cannabis to treat tumours and inflammation
Archaeologists have discovered Egyptian texts describing cannabis as a treatment for pain and inflammation, showing that ancient healers understood its medicinal value long before modern science did.
3. The Greeks used cannabis for wounds and infections
Ancient Greek physicians applied cannabis to their soldiers’ wounds after battle. They also used it to help with ear infections and inflammation, recognizing its antibacterial and soothing qualities.
4. Cannabis became part of Western medicine in the 1800s
Irish physician William Brooke O’Shaughnessy introduced cannabis to European medicine after witnessing its use in India to relieve pain, spasms, and epilepsy. Soon after, cannabis tinctures were sold in pharmacies across Europe and North America.
5. Your body is built to receive cannabinoids
Did you know your body naturally produces cannabinoids? Through the endocannabinoid system, your body uses CB1 and CB2 receptors to regulate sleep, pain, and mood. This is why cannabinoids like THC and CBD can restore balance — they’re working with a system already built into your biology.
6. Cannabis contains over 500 natural compounds
More than 100 of these are cannabinoids, each with unique effects. CBD is non-psychoactive and may help with calmness and inflammation, while THC interacts with the brain’s receptors to influence pain and mood.
7. Medical cannabis access is easier than ever in Canada
Under Health Canada’s medical cannabis program, there’s no restricted list of qualifying conditions. Patients can access cannabis for a wide range of symptoms — from chronic pain to PTSD — with authorization from a licensed healthcare practitioner.
8. Canadians can grow their own medicine at home
Through a Personal Grow Licence (ACMPR), patients can cultivate cannabis plants for personal medical use. Doctors only authorize the amount — but trained cannabis educators can guide you through cultivation safely and legally.
9. Veterans receive free help through GrowVets
Medical cannabis has become a lifeline for veterans managing PTSD and chronic pain. Through GrowVets, veterans receive free authorization and grow licence support, helping them access and afford their treatment through compassionate care.
10. “Kush” is a real place — but not where you think
While many associate Kush with cannabis, the name originally came from the ancient African Kingdom of Cush (or Kush), located in modern-day Sudan. The cannabis strains called “Kush,” however, trace back to the Hindu Kush Mountains between Afghanistan and Pakistan — where the original Indica plants developed their calming, resin-rich traits.
From ancient medicine to modern science, cannabis continues to prove its place in healthcare. Whether you’re managing pain, exploring natural treatments, or want to learn how to grow your own plants legally, GrowLegally — a trusted medical cannabis clinic in Toronto — helps Canadians every step of the way.
Learn more or book your consultation today at GrowLegally.ca.
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Go To PostGrowing medical cannabis successfully isn’t just about planting a seed—it’s about creating balance. Every cannabis plant has its own rhythm, and learning to align your growing environment with that rhythm is what separates average results from exceptional medicine. For Canadians growing under a Personal Grow Licence, understanding how light, air, humidity, and soil work together is the foundation of cultivating safe, effective, and consistent cannabis. Under Health Canada’s ACMPR personal grow licence program, authorized patients can legally cultivate marijuana plants for personal medical use. Whether you’re managing chronic pain, arthritis, PTSD, or anxiety, growing your own cannabis gives you control over purity, strain selection, and supply. But quality depends on more than genetics—it’s about creating the right growing environment. The foundation begins with light, air, and temperature. Cannabis thrives under full-spectrum LED lights that mimic natural sunlight. These systems are energy-efficient, generate less heat, and provide consistent coverage—perfect for indoor growers. During the vegetative stage, aim for 18 hours of light and 6 of darkness; when flowering begins, switch to a 12/12 light cycle. Proper air circulation is just as important. A steady airflow strengthens stems, distributes carbon dioxide, and prevents mould—a small oscillating fan can make a big difference. Temperature and humidity control are vital for plant health. Cannabis prefers 22–28°C during the day and slightly cooler nights around 18–22°C. Humidity should start around 60–70% in early growth and drop to 40–50% during flowering. Maintaining this balance helps prevent mould, while encouraging resin production and terpene development—key factors for medical potency and aroma. Your growing medium also plays a major role. Whether you choose soil, coco coir, or hydroponics, ensure your roots get both oxygen and drainage. Keep soil pH between 6.0 and 6.8, and use clean, organic nutrients rich in nitrogen, phosphorus, and potassium at different growth stages. Overfeeding or inconsistent watering can cause “nutrient burn” or root issues, so pay attention to your plants—leaves often reveal the first signs of imbalance. For detailed techniques, explore our related GrowLegally guides: Hydroponics for Medical Cannabis — Learn how soilless systems boost yields and efficiency for licensed patients. The Best Lighting Options for Indoor Marijuana Farms — Find out which lighting systems deliver the healthiest plants and biggest harvests. How to Dry and Cure Cannabis Flowers Safely in Canada — Preserve cannabinoids, terpenes, and quality post-harvest. Security and compliance are equally important under a medical cannabis grow licence in Canada. Health Canada requires that all plants be kept in a locked, enclosed space that prevents unauthorized access. Outdoor growers should consider fencing or greenhouses—especially near harvest time when theft risk increases. Maintaining a safe and controlled grow not only ensures compliance but also protects your medicine. For many Canadians, growing cannabis is more than just a medical necessity—it’s a mindful, therapeutic process. Veterans, in particular, have found great relief cultivating their own medicine for PTSD and chronic pain. Since the beginning, GrowLegally has proudly supported medical cannabis for veterans , helping them navigate Health Canada’s system and offering free grow licence services when registering with a licensed producer. If you’re ready to start cultivating your own medical cannabis safely and confidently, our Medical Cannabis Clinic in Toronto can help. GrowLegally provides compassionate, knowledgeable support to patients in all provinces—from medical authorization to personalized cultivation guidance—so you can grow your own medicine with confidence and care.
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Toronto, Ontario M2N 6K8
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