Taking the plunge

A growing body of research that suggests an icy plunge might just have various health benefits.
Henriette Lamprecht
It might have been the muscular tattooed body of a Spice Girl’s footballer husband rising from a tub filled to the brim with blocks of ice or the group of middle aged women who at the break of a Saturday’s dawn seem to find their mojo in the icy waves of the ocean. Why replace warm and toasty with shiver and cold?

Cold water therapy, a form of cryotherapy which includes cold water immersion and applying ice or cold to the skin has become a popular health trend all over the world with a growing body of research that suggests an icy plunge might just have various health benefits.

Some studies show it can lead to decreased stress levels and induce significant physiological and biochemical changes in the body, such as improved blood pressure, metabolism and peripheral blood flow. The secondary effects that follow the above changes can include metabolism and heart disease by reducing body fat and improving insulin resistance. Both are associated with chronic conditions like diabetes and cardiovascular disease. According to research it was ancient Greece who coined the idea of using cold water therapy for health and muscle recovery which means the Spice Girl’s footballer husband has the right idea. To get the cold kick, you have three options. Cold water immersion means you have to submerge your entire body from the neck down in water not warmer than 59 degrees Fahrenheit for up to 15 minutes. This can of course be in the privacy of your bathtub, but an icy lake of the ocean will also do. The most obvious is taking a cold shower lasting about 15 minutes and if that is not your fancy, there is the contrast bath therapy. This is similar to cold water therapy, but involves switching from cold to warm water for varying amounts of time, lasting mostly 30 minutes in total.

As with all things natural and exciting, more research is needed to come to a definite conclusion that cold water is a gateway to good health. However preliminary studies have shown the potential mental and physical health benefits of cold water therapy. A 2016 study published in Medicine found that participants who took part in a set amount of exercise and who immersed themselves in a pool with cold water afterwards, stated they experienced less muscle soreness compared to those who didn’t undergo hydrotherapy. The reason could be that the body regulates temperature through the same nerve pathways that signals pain and why icing injuries could help moderate pain and help with muscle recovery. It can also work to alleviate pain by constricting blood vessels and reducing blood flow to peripheral body parts. According to research, this blood flow redistribution may improve oxygenation of muscles and enhance exercise performance..

That splash of cold water on your face or dip in the ocean or swimming pool may just be a rude wakeup call after a strenuous night, but it also stimulates the vagus nerve which is the main nerve of the autonomic nervous system responsible for regulating breathing and heart rate. You instinctively draw a deep breath when the cold water hits you, but sitting in an ice bath or swimming in a cold ocean can help you learn to regulate intense emotion and essentially breathe through it.

“No controlled trials exist to support the theory that cold water therapy may decrease stress and improve mood, however case reports and anecdotal evidence does suggest it can be beneficial for mood, treat depression, increase libido, reduce stress and improve stress regulation,” said Sid Khurana, M.D., a board-certified adult, child and adolescent psychiatrist and medical director of outpatient services at Nevada Mental Health. In 2023 adults who took part in a small study said they felt more alert, inspired and attentive after a single session lasting five minutes in a cold bath. Part of the study were brain scans taken before and after cold water therapy which showed an increased connection between the regions of the brain controlling attention, emotion and self-regulation after cold water immersion.

Similarly, adults in a small 2023 study in Biology noted feeling more alert, inspired and attentive after a single five-minute session in a 68-degree bath. In the study, brain scans taken before and after cold water therapy revealed an increased connection between the regions of the brain controlling attention, emotion and self-regulation after cold water immersion. Again more research is needed to see the long term effect of cold water on mood and focus. Then there is the issue of its impact on metabolism, including body fat percentages and weight loss. Referring to its effect on metabolism, it is linked to brown adipose tissue, a type of fat in the body that can produce heat when exposed to cold, burning more calories. The question however remains if cold water therapy does indeed support long term and significant weight loss.

As with most things in life before you start using only the cold water tap in your shower and attempt the cold Atlantic Ocean, it is always a good idea to speak to your doctor who knows your medical history. According to the American Heart Association the most dangerous time is within the first 60 seconds until your gulps turn to more regular breathing. If you are set on trying cold therapy, do build up your tolerance to cold exposure gradually and don’t stay submerged for more than 10 to 15 minutes to avoid complications.

Comments

Namibian Sun 2024-07-01

No comments have been left on this article

Please login to leave a comment

Rugby World Cup U20: Wales U20 34 vs 41 New Zealand U20 | South Africa U20 57 vs 7 Fiji U20 | Australia U20 35 vs 11 Georgia U20 | Ireland U20 55 vs 15 Italy U20 | England U20 40 vs 21 Argentina U20 | France U20 49 vs 12 Spain U20 Katima Mulilo: 12° | 30° Rundu: 12° | 32° Eenhana: 12° | 31° Oshakati: 12° | 30° Ruacana: 12° | 30° Tsumeb: 15° | 28° Otjiwarongo: 9° | 27° Omaruru: 10° | 27° Windhoek: 8° | 23° Gobabis: 7° | 26° Henties Bay: 12° | 17° Wind speed: 20km/h, Wind direction: S, Low tide: 05:43, High tide: 12:03, Low Tide: 17:51, High tide: 00:21 Swakopmund: 13° | 16° Wind speed: 23km/h, Wind direction: S, Low tide: 05:41, High tide: 12:01, Low Tide: 17:49, High tide: 00:19 Walvis Bay: 12° | 21° Wind speed: 26km/h, Wind direction: S, Low tide: 05:41, High tide: 12:00, Low Tide: 17:49, High tide: 00:18 Rehoboth: 5° | 25° Mariental: 6° | 22° Keetmanshoop: 7° | 21° Aranos: 6° | 24° Lüderitz: 11° | 21° Ariamsvlei: 8° | 20° Oranjemund: 11° | 20° Luanda: 20° | 22° Gaborone: 10° | 24° Lubumbashi: 12° | 28° Mbabane: 10° | 22° Maseru: 5° | 18° Antananarivo: 9° | 22° Lilongwe: 15° | 26° Maputo: 16° | 26° Windhoek: 8° | 23° Cape Town: 11° | 16° Durban: 15° | 25° Johannesburg: 11° | 18° Dar es Salaam: 22° | 31° Lusaka: 14° | 26° Harare: 11° | 23° Currency: GBP to NAD 23.14 | EUR to NAD 19.67 | CNY to NAD 2.52 | USD to NAD 18.33 | DZD to NAD 0.14 | AOA to NAD 0.02 | BWP to NAD 1.28 | EGP to NAD 0.37 | KES to NAD 0.14 | NGN to NAD 0.01 | ZMW to NAD 0.75 | ZWL to NAD 0.04 | BRL to NAD 3.27 | RUB to NAD 0.21 | INR to NAD 0.22 | USD to DZD 134.03 | USD to AOA 860.33 | USD to BWP 13.67 | USD to EGP 48.25 | USD to KES 128.48 | USD to NGN 1469.69 | USD to ZAR 18.33 | USD to ZMW 24 | USD to ZWL 321 | Stock Exchange: JSE All Share Index Same 0 | Namibian Stock Exchange (NSX) Overall Index 1796.12 Down -0.09% | Casablanca Stock Exchange (CSE) MASI 13301.37 Down -0.13% | Egyptian Exchange (EGX) 30 Index 27969.59 Up +0.73% | Botswana Stock Exchange (BSE) DCI Same 0 | NSX: MTC 7.75 SAME | Anirep 8.99 SAME | Capricorn Investment group 17.34 SAME | FirstRand Namibia Ltd 49 DOWN 0.50% | Letshego Holdings (Namibia) Ltd 4.1 UP 2.50% | Namibia Asset Management Ltd 0.7 SAME | Namibia Breweries Ltd 31.49 UP 0.03% | Nictus Holdings - Nam 2.22 SAME | Oryx Properties Ltd 12.1 UP 1.70% | Paratus Namibia Holdings 11.99 SAME | SBN Holdings 8.45 SAME | Trustco Group Holdings Ltd 0.48 SAME | B2Gold Corporation 47.34 DOWN 1.50% | Local Index closed 677.62 UP 0.12% | Overall Index closed 1534.6 DOWN 0.05% | Osino Resources Corp 19.47 DOWN 2.41% | Commodities: Gold US$ 2 327.56/OZ UP +0.11% | Copper US$ 4.41/lb UP +0.74% | Zinc US$ 2 930.80/T DOWN -0.06% | Brent Crude Oil US$ 87.05/BBP UP +1.38% | Platinum US$ 973.26/OZ DOWN -0.0199 Sport results: Rugby World Cup U20: Wales U20 34 vs 41 New Zealand U20 | South Africa U20 57 vs 7 Fiji U20 | Australia U20 35 vs 11 Georgia U20 | Ireland U20 55 vs 15 Italy U20 | England U20 40 vs 21 Argentina U20 | France U20 49 vs 12 Spain U20 Weather: Katima Mulilo: 12° | 30° Rundu: 12° | 32° Eenhana: 12° | 31° Oshakati: 12° | 30° Ruacana: 12° | 30° Tsumeb: 15° | 28° Otjiwarongo: 9° | 27° Omaruru: 10° | 27° Windhoek: 8° | 23° Gobabis: 7° | 26° Henties Bay: 12° | 17° Wind speed: 20km/h, Wind direction: S, Low tide: 05:43, High tide: 12:03, Low Tide: 17:51, High tide: 00:21 Swakopmund: 13° | 16° Wind speed: 23km/h, Wind direction: S, Low tide: 05:41, High tide: 12:01, Low Tide: 17:49, High tide: 00:19 Walvis Bay: 12° | 21° Wind speed: 26km/h, Wind direction: S, Low tide: 05:41, High tide: 12:00, Low Tide: 17:49, High tide: 00:18 Rehoboth: 5° | 25° Mariental: 6° | 22° Keetmanshoop: 7° | 21° Aranos: 6° | 24° Lüderitz: 11° | 21° Ariamsvlei: 8° | 20° Oranjemund: 11° | 20° Luanda: 20° | 22° Gaborone: 10° | 24° Lubumbashi: 12° | 28° Mbabane: 10° | 22° Maseru: 5° | 18° Antananarivo: 9° | 22° Lilongwe: 15° | 26° Maputo: 16° | 26° Windhoek: 8° | 23° Cape Town: 11° | 16° Durban: 15° | 25° Johannesburg: 11° | 18° Dar es Salaam: 22° | 31° Lusaka: 14° | 26° Harare: 11° | 23° Economic Indicators: Currency: GBP to NAD 23.14 | EUR to NAD 19.67 | CNY to NAD 2.52 | USD to NAD 18.33 | DZD to NAD 0.14 | AOA to NAD 0.02 | BWP to NAD 1.28 | EGP to NAD 0.37 | KES to NAD 0.14 | NGN to NAD 0.01 | ZMW to NAD 0.75 | ZWL to NAD 0.04 | BRL to NAD 3.27 | RUB to NAD 0.21 | INR to NAD 0.22 | USD to DZD 134.03 | USD to AOA 860.33 | USD to BWP 13.67 | USD to EGP 48.25 | USD to KES 128.48 | USD to NGN 1469.69 | USD to ZAR 18.33 | USD to ZMW 24 | USD to ZWL 321 | Stock Exchange: JSE All Share Index Same 0 | Namibian Stock Exchange (NSX) Overall Index 1796.12 Down -0.09% | Casablanca Stock Exchange (CSE) MASI 13301.37 Down -0.13% | Egyptian Exchange (EGX) 30 Index 27969.59 Up +0.73% | Botswana Stock Exchange (BSE) DCI Same 0 | NSX: MTC 7.75 SAME | Anirep 8.99 SAME | Capricorn Investment group 17.34 SAME | FirstRand Namibia Ltd 49 DOWN 0.50% | Letshego Holdings (Namibia) Ltd 4.1 UP 2.50% | Namibia Asset Management Ltd 0.7 SAME | Namibia Breweries Ltd 31.49 UP 0.03% | Nictus Holdings - Nam 2.22 SAME | Oryx Properties Ltd 12.1 UP 1.70% | Paratus Namibia Holdings 11.99 SAME | SBN Holdings 8.45 SAME | Trustco Group Holdings Ltd 0.48 SAME | B2Gold Corporation 47.34 DOWN 1.50% | Local Index closed 677.62 UP 0.12% | Overall Index closed 1534.6 DOWN 0.05% | Osino Resources Corp 19.47 DOWN 2.41% | Commodities: Gold US$ 2 327.56/OZ UP +0.11% | Copper US$ 4.41/lb UP +0.74% | Zinc US$ 2 930.80/T DOWN -0.06% | Brent Crude Oil US$ 87.05/BBP UP +1.38% | Platinum US$ 973.26/OZ DOWN -0.0199