Air turbulence: When can it become dangerous?
Flight turbulence like that encountered by a Singapore Airlines flight on Tuesday is extremely common, but there's one aspect of severe turbulence an aviation expert says can lead to serious injury.
Functional beverages -- or drinks promoted as offering mental or physical benefits beyond hydration -- are growing in popularity around the world. Hundreds of companies have jumped into the market, hoping to get some buzz with trendy and sometimes unfamiliar ingredients.
Here are some of the latest ones found in functional beverages and what scientists say about them.
What are they? Plants and mushrooms that may help your body respond to stress, anxiety and fatigue or enhance feelings of well-being. Examples include American and Asian ginseng (an herb), ashwagandha (an evergreen shrub), eleuthero (a shrub), Rhodiola rosea (a flowering plant) and chaga (a mushroom).
What does the science say? The Cleveland Clinic says adaptogens are known to trigger chemical reactions that can return the body to a more balanced state. Side effects from adaptogens are rare but depend on the plant. Studies show that adaptogens work best for a short duration (less than six months) because the body can build a resistance to them, making them ineffective over time.
What are they? Also known as "smart drugs," nootropics are substances that can improve human thinking, learning and memory. Among the most common nootropics are caffeine, L-theanine (an amino acid found in tea), creatine (an amino acid naturally found in meat and fish), Bacopa monnieri (an herb), Gingko biloba (a tree) and lion's mane (a mushroom). Some adaptogens may also have nootropic properties, like ashwagandha.
What does the science say? In a study last year in the journal Plants, researchers said that most plant-based nootropics are not immediately effective after a single dose and must be taken for an extended period before any measurable improvement occurs. One problem in research on these natural substances has been standardizing the form they are taken in and the dosage, the study said. Side effects are rare and usually mild, but users should consider their overall health and whether nootropics could affect any other medications before ingesting them.
What are they? Probiotics are foods or supplements that contain live microorganisms intended to maintain or improve the "good" bacteria in a person's gut or other parts of the body. They are naturally found in fermented foods like yogurt, kefir, cottage cheese, kombucha and sauerkraut. Prebiotics are food for the bacteria and other organisms that live in the gut. Prebiotics can be found in whole grains, bananas, greens, onions, garlic, soybeans and artichokes.
What does the science say? The Cleveland Clinic says probiotics, in theory, work alongside the beneficial microbes in the human body to fight off harmful bacteria, fungi, viruses and parasites. Researchers know that unhealthy microbiomes can contribute to chronic diseases like irritable bowel syndrome. They may also influence mood, pain tolerance and fatigue. The Cleveland Clinic and the Mayo Clinic say there is a lot of active research into the microbiome and the impact of probiotics and prebiotics, but not enough evidence to draw solid conclusions about their effectiveness. Side effects are rare except for people with weak immune systems, whose bodies might not be able to fight off a probiotic that inadvertently contains harmful microbes.
What is it? CBD, or cannabidiol, is an active ingredient in cannabis. While it is one of hundreds of components in marijuana, CBD doesn't cause a high by itself. CBD has been used to treat epilepsy and may also help alleviate anxiety, insomnia, chronic pain and addiction. Side effects could include nausea, fatigue and irritability.
What does the science say? In an article published in April, Harvard Medical School said CBD appears to be a helpful, relatively non-toxic option for managing anxiety and other issues. But it said more research is needed to pinpoint effective doses.
Flight turbulence like that encountered by a Singapore Airlines flight on Tuesday is extremely common, but there's one aspect of severe turbulence an aviation expert says can lead to serious injury.
British Columbia serial killer Robert Pickton was attacked and sustained life-threatening injuries in a Quebec prison Sunday in what officials described as a 'major assault.'
World Food Programme executive director Cindy McCain says people living in Gaza are 'wasting' as famine concerns continue amid the war between Israel and Hamas.
New inflation data is 'welcome news' for consumers and an economist says it could signal the possibility for a interest rate cut as several core measures also continue to ease.
The Toronto Blue Jays have offered tickets and a signed baseball to a fan who says she was struck in the face by a 110 m.p.h (177 km/h) foul ball at Friday’s game.
Ontario Provincial Police continue to investigate a long weekend fatal boat collision on Bobs Lake, north of Kingston, Ont.
An investigation has been opened into the death of Matthew Perry and how the “Friends” actor received the anesthetic ketamine, which was ruled a contributing factor in his death.
House of Commons Speaker Greg Fergus is facing fresh Conservative-led calls to resign, this time over "very partisan" and 'inflammatory' language used – the Liberals say mistakenly – to promote an upcoming event.
As Prime Minister Justin Trudeau continues the 'Team Canada' charm offensive to U.S. lawmakers and business leaders, Canada's ambassador to the United States downplayed the effect of another Trump presidency on Canada.
Public libraries in Atlantic Canada are now lending a broader range of items.
Flashes of purple darting across the sky mixed with the serenading sound of songs will be noticed more with spring in full force in Manitoba.
Catching 'em all with impressive speed, a 7-year-old boy from Windsor, Ont. who only started his competitive Pokémon journey seven months ago has already levelled up to compete at a world championship level.
A sanctuary dedicated to animals with disabilities is celebrating the third birthday of one of its most popular residents.
2b Theatre recently moved into the old Video Difference building, seeking to transform it into an artistic hub, meeting space, and temporary housing unit for visiting performers in Halifax.
A B.C. woman says her service dog pulled her from a lake moments before she had a seizure, saving her life.
A Starbucks fan — whose name is Winter — is visiting Canada on a purposeful journey that began with a random idea at one of the coffee chain's stores in Texas.
Members of Piapot First Nation, students from the University of Winnipeg and various other professionals are learning new techniques that will hopefully be used for ground searches of potential unmarked grave sites in the future.
ALS patient Mathew Brown said he’s hopeful for future ALS patients after news this week of research at Western University of a potential cure for ALS.