/r/SciENTce

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/r/SciENTce

2,015 Subscribers

4

Photoperiodism of weed plants in tropical climates

Hello everyone! I was thinking about how cannabis plants (except for the automatic flowering ruderalis variation) need less than 16 hours (wikipedia says 12-14 hours) to start flowering. So for a good vegetative growing period they need more than 14 hours of light per day. According to google the maximum amount of daylight in jamaica is around june 21 with approximately 13 hours. So i was asking myself how can weed plants in jamaica (as seen on many videos - never been there) become this huge without beginning to produce flowers when most of the year there are only ~ 12h of daylight? Hope u can understand my question and maybe even answer it. Thx!

1 Comment
2024/06/04
22:31 UTC

2

Frequency vs Total Consumption

Hello, I am a medical user, and am wondering which is worse for brain development (I am under 26). To consume 1 weed 3x/day or 3 weed (or even 6 weed) 1x/day. Would the difference even matter?

2 Comments
2023/08/24
02:29 UTC

2

The Sacred Plant - Healing Secrets Exposed - 15 Part Documentary on healing with cannabis, from cancer, chronic pain, numerous health conditions; they follow real patients, actual Doctors in the documentaries, really good! (odysee.com)

Healing with Hemp/Cannabis. "In this exciting season premiere, you'll discover what makes cannabis such a powerful healing agent and learn about the dark history of its prohibition. You'll also hear heart-wrenching yet inspirational stories from multiple patients including a 4 time Grammy Award winner, how the Hyde family snuck cannabis oil into the hospital for their 2 year old son, Cash..and how he beat cancer twice and many more."

0 Comments
2023/05/08
04:04 UTC

1

question

Has there been a science experiment for humans like think to text? Like they're studying human brain words/thoughts and the transcript comes out with "man I hope I don't think about porn" "squirls, I can just keep saying squirls and they won't know anything""damn they know I'm trying to not think about porn, damn they know it again, they must think I'm a nutjob" "ha nutjob, squirls, get it." "I think I'm going to a sanehome after this."

0 Comments
2023/03/01
22:20 UTC

1 Comment
2022/06/23
23:49 UTC

3

Our final follow-up (we promise!)

Hi again, everyone!

Thank you so much for your engagement with the Google survey we posted several days ago. Our professor was really impressed with the data we've collected so far!

The purpose of our project is to create a simple infographic toolkit with accessible information about cannabinoids based on the data collected from our previous poll and the Google survey. One of our aims is to also understand gaps in general knowledge about cannabinoid use in relation to gastrointestinal diseases, discomfort, and symptom management.

It's a very simple infographic with a little bit of information about cannabinoid use.

Please answer this Google survey after viewing the infographic. With this data, we'd be able to gauge whether the information we included in the infographic was useful.

0 Comments
2021/12/02
18:44 UTC

2

Follow-up survey

Hello again, everyone!

Thank you for answering our last poll-- to gather more data, we've created a Google form with more detailed questions due to popular demand. Please let us know if you have any questions and/or comments below, and we'll do our best to answer them ASAP!

0 Comments
2021/11/29
14:38 UTC

10

Have you ever used cannabinoids to improve or manage symptoms for any of the following? :

As part of our PhD. in Experimental Medicine, we want to identify the main causes for Cannabinoid use to investigate the pathophysiology of the following symptoms or disorders. Thank you!

View Poll

6 Comments
2021/11/17
22:06 UTC

11

Awesome video on the Neuropsychopharmacology of cannabis (how THC works in the brain). Pretty cool and understandable, fast-paced, and has lots of content.

0 Comments
2021/11/01
12:22 UTC

4

Do gut enzymes inhibitors such as CYP3A4 inhibitors increase THC (cannabis oil) bioavailability when ingested ?

I tried askscience, they just couldn't

3 Comments
2021/10/08
07:43 UTC

7

If linalool boils at 388.4F, will heating my flower to a lower temperature reduce linalool exposure?

Title, basically. I think high linalool strains give me migraines, but ironically cannabis is the best solution to a migraine..if I already have one.

Two questions:

- I use a pax to dry heat herb. If I heat the flower to a 350F for instance, will it reduce my linalool exposure?

- Is there a site I can find full terp profiles for specific strains? So I can buy lower linalool strains.

Thanks!

1 Comment
2021/05/14
01:35 UTC

22

I am Matt Elmes, PhD; Cannabis scientist. After making discoveries about how we process cannabinoids at the cellular level, I transitioned to work in the California cannabis industry. I’ve also been a regular cannabis user myself for 20 years. Now that you’ve read my qualifications as Dr. Weed, AMA!

2 Comments
2020/08/26
16:03 UTC

7

Is there a good science forum to discuss research into the cannabinoids?

So, I'm a science guy. Graduated medical school, sat on an IRB for 8 years, taught in medical school for 8 years, love to read peer reviewed science journals. Not just the abstract, the whole thing, including tracking down some of the citations used, if a claim seems a bit off to me. I have looked everywhere for a website/online forum where researchers and scientists can engage each other.

Does such a site exist? It's one thing to comb through the literature to get one's questions answered, but it would be really nice to use the hive mind in my work.

6 Comments
2020/08/23
19:41 UTC

3

What is the difference between THC in Sativa vs Indica strains?

I have yet to hear there be a difference between the THC in Sativa strains vs Indica strains or at least brought to my attention.

Considering the arguably vast differences between the effects of it, is there a difference between the THC in one or the other? Or are there other properties/chemicals that alter that, as opposed to THC.

Furthermore what does that mean for hybrid strains? Do they have a bit of each?

15 Comments
2020/07/12
18:02 UTC

6

What does THC percentage mean on dried buds?

Me and my friends were discussing what THC percentage means when labeled on dried cannabis. Some dispensaries advertise that a strain has, for example, 30% THC , which is very high. But we can't agree on what the percentage represents..

Option 1: THC percentage represents the amount of THC compared to other cannabinoids. For example, a 30% THC bud will have composition of 30% THC and 70% of other cannabinoids in it. It does not say anything about how much THC compared to the total weight of the bud.

Option 2: THC percentage represents the total amount of THC compared to the weight of the bud. 1 gram bud with 30% THC will have a total of 0.3 grams of THC in it. It does not say anything about composition of cannabinoids.

3 Comments
2020/07/11
23:35 UTC

3

Question about entourage effect.

So, I have the option of buying extremely cheap cbd isolate (to make into tincture) compared to relatively expensive full spectrum tinctures - and I also smoke/orally ingest cannabis for the THC etc.

Will the terpenes my body is getting from smoking/eating cannabis combine with the tincture made from cbd isolate to basically end up providing the same benefits as using full spectrum tincture - or do the molecules have to be localized into the same ROA to have the entourage effect take hold?

0 Comments
2020/06/19
20:27 UTC

2

Help: I'm looking for scientific studies relating to the effects of cannabis on sleep.

Hey guys, I've been tracking my sleep lately and am curious about the effects that my cannabis use is having on my sleep quality.

I'm looking for scientific studies I can read that focus on the effects that THC (or CBD) has on sleep.

I'm aware of the general knowledge that THC seems to inhibit REM and/or deep sleep, but I'm looking for actual scientific studies, not just hearsay and articles.

Thanks for anyone who can point me in the right direction.

7 Comments
2020/05/15
17:10 UTC

13

Is it a myth? Decarboxylating live resin (and other concentrates) with heat will destroy a significant portion of terpenes even when using the minimum heat required to convert THCA to THC. (Which is much lower than the boiling point of most terpenes.)

The boiling point of the majority of terpenes is 311°F to 495°F. The minimum required heat to decarboxylate THCA is 222°F. Why can't the terpenes seem to hold up well at all when they seem to have much higher heat resistance than THCA?

I decided I want to decarb my live resin for a less waxy, and more liquidy consistency. A lot of information is conflicting, but most people tend to agree that decarbing live resin will destroy a large portion of the terpene profile that live resin is known for, this is obviously a concern to me.

Upon trying to find research on this, I actually didn't find much evidence supporting this idea. Just alot of people "saying" decarbing destroys terpenes so it makes no sense to decarb live resin. Although, I did find a lot of tutorials of people decarbing live resin without conservation of live resin being much of a priority. (Like cooking live resin without a lid on high heat for 20 minutes, or putting their resin jar in a scolding hot boiling "bath" until it turns dark brown.) It seems that everyone assumes it is required to over aggressively burn the hell out of the concentrate in a short period of time in order to decarb it.

I still have many questions I can't find the answer to. Shouldn't heating the live resin at the lowest temp for a much longer period of time (days or even weeks) greatly preserve most of the available terpenes contained?

7 Comments
2020/05/13
03:57 UTC

13

Single Exposure to THC Vapor Elicits Brain Changes Resembling Psychosis / Schizophrenia in Rats

https://www.youtube.com/watch?v=Sp10A7-0a1g

Many claims have been made regarding the relation between cannabis use and psychiatric disorders, such as schizophrenia. The idea that frequent use of potent cannabis can elicit detrimental effects on cognition, learning & memory, & executive function is generally accepted. But how does THC, the main psychoactive compound in cannabis, produce changes in brain function that ultimately manifest as symptoms like psychosis that resemble that chief features of schizophrenia? And which brain regions & connections are primarily involved in mediating these effects?

In this video, Bryan Jenkins - Neuroscience PhD Candidate from the University of Guelph - joins us to discuss how a single exposure to vaporized THC can elicit long-term changes in brain waves (oscillatory activity) such as delta, theta, & gamma waves that strikingly resemble the changes observed in patients with schizophrenia. This work has vast implications for our understanding of recreational cannabis use & cannabis use disorder, & how they relate to brain changes that underlie the onset of schizophrenia and related disorders. These results may also inform on public health regarding the increased rates of vaping seen in youth and adolescents in recent years.

2 Comments
2020/05/05
18:56 UTC

3

Artificial Seeds are about to change the marijuana industry forever

0 Comments
2020/04/29
02:52 UTC

6

How to stop the viroid that's devastating California's cannabis crops

0 Comments
2020/04/27
20:26 UTC

1

Why is tissue culture popular again?

0 Comments
2020/04/24
04:03 UTC

2

What is Tissue Culture Micropropagation?

0 Comments
2020/04/21
01:52 UTC

4

Experience of spice users

Hello, We are interested in the experiences of people that use SPICE (synthetic cannabinoids). If you are a SPICE user and can spare 20 minutes please complete our survey. It is completely anonymous.

https://uelpsych.eu.qualtrics.com/jfe/form/SV_2h17r6olcu2O70V

Many thanks

1 Comment
2020/03/08
12:56 UTC

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