Tag: swimming

How does swimming in cold water affect your health?

Q: I keep hearing about the benefits of swimming in cold water. Is it actually good for you?

A: There is intriguing preliminary evidence that swimming in cold water may have antidepressant effects.

One study, conducted in Britain in 2020, reported that swimming in the cold ocean reduced depressed mood up to 10 times as much as it did in a group of controls who watched the swimmers from the beach. And a separate case report found that a woman with treatment-resistant depression experienced significant improvement in her depressive symptoms after swimming in cold seawater once a week.

But studies about the mental health benefits of cold water swimming tend to involve swimming with other people, so it’s hard to know whether it’s the socializing with others — or the swimming itself — that provides most of the observed antidepressant effect.

Still, cold water exposure has arousing and stimulating effects, and it appears to increase many substances that we know are involved in regulating mood. For example, studies that immerse healthy subjects in cold water show a spike in the stress hormones cortisol and norepinephrine. This is the same response that humans and animals have to danger and threat, and it is part of our hard-wired flight or fight reflex that affords enormous survival advantage.

Also, exposure to cold water causes release of endorphin and dopamine, which are neurotransmitters that convey a sense of pleasure.

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I’m familiar with this feeling. On a recent hot night, I ran off to a large outdoor pool in Manhattan that was full of delightfully cool water. It was initially stimulating, but soon after I starting swimming, I

Four Durham beaches listed as unsafe for swimming by Durham health department


Four of Durham’s beaches are posted as unsafe for swimming this week.

They are Beaverton North and South Beach, Bowmanville East and Kinsmen Beach at Palmer Park in Port Perry.

Beaches are posted as unsafe for swimming when elevated levels of E. coli exceed the provincial standard.

Kinsmen also has a blue-green algae advisory in place.

“People can protect themselves and their pets from blue-green algae blooms by not swimming or playing in areas where water is discoloured or where foam, scum, or mats of algae on the water’s surface are present,” the health department said. “Consuming fish from areas where mats of algae are present is also not advised.”

You are also reminded to stay out of the water within 48 hours of heavy rainfall, as the run-off can carry more bacteria.

Municipality

Beach

Status

Ajax

Paradise Beach (Lakeview Blvd. and Paradise Lane)
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Open

Brock

Beaverton North Beach (Wellington St. and Victoria St.)
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Posted

Brock

Beaverton South Beach (Simcoe St. & Harbour Park Cres.)
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Posted

Brock

Thorah Centennial Park (Shoreline Rd. RR#47 and Thorah Concession Rd. 9)
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Open

Clarington

Bowmanville East (Port Darlington Rd. and East Beach Rd.)
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Posted

Clarington

Bowmanville West (West Beach Rd. and Cove Rd.)
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Open

Clarington

Newcastle Beach Central (Mill St. South and Boulton St.)
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Open

Oshawa

Lakeview Beach East (Simcoe St. South and Lakeview Park Ave.)
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Open

Oshawa

Lakeview Beach West (Kluane Ave. and Lakeview Park Ave.)
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Open

Pickering

Frenchman’s Bay East (Wharf St. and Liverpool Rd.)
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Open

Pickering

Frenchman’s Bay West (West Shore Blvd. and Beachpoint Promenade)
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Open

Scugog

Kinsmen Beach (Palmer Park – Water St. and Mary St.)
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Durham health department begins monitoring beach water; all beaches safe for swimming


If you wanted to go for a swim at one of Durham’s beaches this weekend, they’re all safe for swimming.

The region’s health department has started testing beach water at all 14 locations.

Beaches are posted as unsafe for swimming when there are elevated levels of E. coli.

This week’s test results all came back clear, which means all of the beaches are open.

Although Kinsmen Beach in Scugog is technically listed as safe, there is a blue-green algae advisory in effect. You’re advised not to go swimming or play in areas where water is discoloured or where foam, scum or mats of algae are present on the water’s surface. Consuming fish from areas where mats of algae are present is also not advised. Pets should also not drink the water.

If there is heavy rainfall, health officials say you should not go swimming in beach water for at least 48 hours because bacteria levels can increase due to run-off.

Test results for the week of June 5, 2023

Municipality

Beach

Status

Ajax

Paradise Beach (Lakeview Blvd. and Paradise Lane)Map this location

Open

Brock

Beaverton North Beach (Wellington St. and Victoria St.)Map this location

Open

Brock

Beaverton South Beach (Simcoe St. & Harbour Park Cres.)Map this location

Open

Brock

Thorah Centennial Park (Shoreline Rd. RR#47 and Thorah Concession Rd. 9)Map this location

Open

Clarington

Bowmanville East (Port Darlington Rd. and East Beach Rd.)Map this location

Open

Clarington

Bowmanville West (West Beach Rd. and Cove Rd.)Map this location

Open

Clarington

Newcastle Beach Central (Mill St. South and Boulton St.)Map this location

Open

Oshawa

Lakeview Beach East (Simcoe St. South and Lakeview Park Ave.)Map this location

Open

Oshawa

Lakeview Beach West (Kluane Ave. and Lakeview Park Ave.)Map this location

Open

Pickering

Frenchman’s Bay

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