CANNABIS: ¿Riesgos o beneficios?

What is Cannabis and How Does It Affect Us?

Overview of Cannabis

• Cannabis is the most widely consumed illegal drug globally, with about 4% of the world's population reporting usage.

• The discussion will cover what cannabis is, its effects on the brain, and potential health risks and benefits.

Types of Cannabis

• Cannabis refers to both the plant itself and its preparations for medical or recreational use.

• The main species include Cannabis sativa, Cannabis indica, and Cannabis ruderalis.

Cannabinoids in Cannabis

• Two primary cannabinoids are:

• Delta-9-tetrahydrocannabinol (THC): Known for its psychoactive effects that alter central nervous system function.

• Cannabidiol (CBD): Non-psychoactive with anxiolytic and sedative properties.

Consumption Methods

• Cannabis can be consumed in various ways; however, inhalation (e.g., smoking marijuana or hashish) is the most common method.

• Smoking leads to immediate effects as THC quickly reaches the brain, while oral consumption delays onset due to digestion time.

Effects of Cannabis Use

• Common effects include euphoria, relaxation, sociability, but also sensory alterations like time perception changes and motor coordination issues.

How Does THC Work in Our Body?

Classification of Drugs

• Drugs are categorized based on their psychoactive effects:

• Hallucinogens (e.g., LSD)

• Stimulants (e.g., cocaine)

• Depressants (e.g., alcohol, cannabis)

Mechanism of Action

• THC activates cannabinoid receptors in neurons after absorption into the bloodstream.

Endocannabinoids

• The body produces natural cannabinoids called endocannabinoids that regulate appetite, mood, and pain relief. Examples include anandamide and 2-arachidonoylglycerol.

Health Implications of Cannabis Consumption

Consequences of Use

• Understanding cannabis's health impacts is crucial given its widespread use as an illegal substance.

Addiction Potential

Effects of Cannabis Consumption on Health

Withdrawal Symptoms and Short-Term Effects

• The withdrawal syndrome from cannabis is milder compared to substances like alcohol, but can still cause irritability, restlessness, depressed mood, and physical symptoms such as abdominal pain, spasms, tremors, sweating, fever, chills, and headaches.

Mental Health Consequences

• Cannabis consumption is linked to both short-term and long-term adverse effects on mental health. Short-term effects include cognitive issues like paranoia, hallucinations, anxiety attacks, and impaired reaction time.

• Regular cannabis users are at a higher risk for severe long-term disorders such as depression and schizophrenia. Schizophrenia affects over 21 million people globally by altering thought processes and perceptions.

Genetic Predisposition and Age of Onset

• The development of psychiatric disorders related to cannabis use may be influenced by genetic predispositions and the age at which an individual begins using cannabis; earlier use increases the risk of developing conditions like schizophrenia.

Impact on Brain Development

• Cannabis can disrupt brain development due to its interaction with endocannabinoids involved in maturation. Adolescents are particularly vulnerable; early use can impair attention, memory, learning functions, and affect brain area development responsible for these functions.

Respiratory and Cardiovascular Risks

• Smoking cannabis poses similar respiratory risks as tobacco due to harmful substances in marijuana smoke. This includes increased chances of bronchitis and chronic cough.

• While studies on cannabis's link to lung cancer remain inconclusive, it has been shown that cannabis increases the risk of cardiovascular diseases such as heart attack or stroke.

Therapeutic Use of Cannabis

• Despite concerns about its health impacts, medicinal use of cannabis is explored primarily for treating chemotherapy-induced nausea/vomiting and neuropathic pain associated with conditions like multiple sclerosis.

Impact of Cannabis Consumption on Health

Understanding the Association Between Cannabis and Health Issues

• The speaker emphasizes that while there appears to be a correlation between cannabis use and certain health conditions, a causal relationship has not been established. Repeated cannabis users tend to experience these diseases more frequently, but the underlying mechanisms remain unclear.

• The effects of cannabis consumption on health are influenced by various factors, including:

• Concentration of tetrahydrocannabinol (THC): Higher concentrations lead to more harmful effects.

• Frequency of use: Regular consumption may increase risks.

• Genetic predisposition: Some individuals may be genetically more susceptible to developing specific health issues.

• Age at first use: Early initiation can impact health outcomes.

Complexity in Health Discussions

• The speaker notes that health topics often exist in shades of gray rather than clear-cut answers. Many variables contribute to the effects of cannabis on individual health.