First aid advice - When symptoms of heat exhaustion are seen, the most effective treatment is to move the person to a cool place.Footnote 82 Footnote 83 Footnote 84 The message should focus on a cool place rather than an air-conditioned place (e.g. Ask your coach, trainer or a teammate to pay special attention to you during extreme heat if you are particularly at risk. Effective communication planning must begin well in advance of an extreme heat event to positively influence behavioural change and to help the audience deal with extremely hot weather. To distribute heat-health information in rural areas, you could use: When communicating with intended audiences, take advantage of techniques designed to capture attention, along with strategies that will influence behavioural outcomes.Footnote 65 It is important to ensure that heat-health messages are accessible, credible, personally relevant, take into consideration existing knowledge and focus on achievable outcomes (Box 7). 3. Analyses of extreme heat events help to identify heat-vulnerable groups for which hot weather Table 2.
Statistics Canada, Ottawa, ON, 56. Sodium Supplementation Is Not Required to Maintain Serum Sodium Concentrations During an Ironman Triathlon. Biometeorol., 52, 3-15. (2007). Spronken-Smith, R. A. and Oke, T. R. (1998). Remember to frequently visit neighbours, friends and older family members, especially those who are chronically ill, to make sure that they are cool and hydrated. Highlight main ideas and important information with sub-headings, point-form lists and boldface type. Health Canada, Ottawa, ON, 29. J. Communicating Risk. Built Environ., 33, 85- 96. Mortality in Chicago Attributed to the July 1995 Heat Wave.Am. Public Health, 98, 2214-2222. Protect yourself from the dangers of very HOT weather It's way too HOT! Stöllberger, C. and Finsterer, J. //change share link
(2002). If sun exposure can't be avoided, use sunscreen that is SPF 15 or higher and follow the manufacturer's directions. People who exercise in the heat - Physically active individuals who exercise in the heat (e.g. Public Health Agency of Canada's "You CAN prevent falls! Differential and Combined Impacts of Winter and Summer Weather and Air Pollution due to Global Warming on Human Mortality in South-Central Canada. (2008). Use a sunscreen that is SPF 15 or higher and follow the manufacturer's directions. Clin. Factors Associated with High Risk of Marginal Hyperthermia in Elderly Patients Living in an Institution. UK Cabinet Office, UK, 70. The Importance of Salt in the Athlete's Diet. chronic dehydration, does not leave home), Limited financial resources to adequately take protective actions, Reduced access to clean water and cool places, Limited access to health care and social services, More environmental exposures (e.g. Did Thirst-Blockers Like Angiotensin-Converting- Enzyme Inhibitors, Sartans, Serotonine-Re-Uptake-Inhibitors, Dopamine Agonists/Antagonists, or Atypical Neuroleptics Contribute to the Exorbitant Number of Fatalities During the French 2003 Heat Wave? (1976). This will increase the likelihood of retention of key messages. Retrieved February 4, 2010, from http://www.hc-sc.gc.ca/hl-vs/pubs/ sun-sol/safety-prudence-eng.php. Epidemiol., 18, 282-288. The message uses an appropriate tone for the audience. Keep in mind that some people may not have access to air-conditioned places. Retrieved October 1, 2009, from http://www.bvsde.paho.org/muwww/fulltext/saneam /health/health.html. Without convenient public transportation, people without vehicles may not be able to go to a cooler place. Am. Crisis and Emergency Risk Communication. Retrieved January 18, 2010, from http://adaptation.nrcan.gc.ca/projdb/pdf/205_e.pdf. (2007). Sports Med., 36, 2226-2237. Communicating the Health Risks of Extreme Heat Events: Toolkit for Public Health and Emergency Management Officials was developed by Health Canada to help achieve this goal. Engineering Controls Riedl. Davis, R. E., Knappenberger, P. C., Michaels, P. J. et al. (2009). Involve family members, neighbours and friends to provide support during extreme heat. (1976). Climate models can be used to demonstrate current and projected biophysical vulnerability. Block the sun by closing awnings, curtains or blinds during the day. It is very important to ensure that heat-health messages are complementary before you distribute them. Agriculture, Aquaculture and Fisheries. During an extreme heat event, providing effective and rapid communication materials emphasizing only three to seven bits of familiar information that audiences can/should remember is very important. Assessing Perceived Health Risks of Climate Change: Canadian Public Opinion - 2008. Alleviation of Heat Strain by Cooling Different Body Areas During Red Pepper Harvest Work at WBGT 33 Degrees C. Ind. 2.4 Supervisors are responsible for ensuring that all employees who are at risk for heat illness are trained annually on this program. High body temperature - Core body temperature over 40°C/104°F is indicative of heat stroke. Heat-related illnesses can be reduced with measures that help people to maintain a normal body temperature (approximately 37°C/99°F). If you are using a window air conditioner, cool only one room where you can go for heat relief. High Risk Employees and Discrimination Issues Mar 15, 2020 . (2008). Ottawa, ON. Pediatrics, 124, 541-547. Include both degrees Fahrenheit and Celsius in the messages if the audience might find this information useful (e.g. It features in-class and at-home activities on topics such as climate change, weather events, knowing the risks in your community, safety rules, making a plan, getting a kit and dealing with emotions related to emergencies.Footnote 41 Footnote 50. Emergency Response Procedures 2.5 If an employee has any symptoms of heat illness, first-aid procedures should be initiated without delay. Less favourable working conditions, limited employment prospects and an overall lower income are all factors negatively affecting health. Call 911 or your local emergency number immediately if you are caring for someone, such as a running partner, who has a high body temperature and is either unconscious or confused. \
Environment Canada (Ontario Region) defines a heat wave as "a period with more than three consecutive days of maximum temperatures at or above 32°C [90°F]. Jennissen, T. (1992). To facilitate communication with audiences in summer, officials may inform the public about the severity of extreme heat events by displaying a "heat meter" sign by the side of the road, an entrance to a park or recreational facility. Employees identified as working in a high-risk area will need to follow the guidelines in Table 2 and the section Control of Heat Stress. Vescovi, L., Rebetez, M. and Rong, F. (2005). Employees exposed to long periods of extreme heat, such as agricultural and construction workers, may be at risk of heat stress (or heat illness) and related occupational injuries.Common illnesses related to heat stress include heat stroke, heat exhaustion, heat cramps and heat rashes. Signs of heat stroke may include a core body temperature of more than 40°C/104°F, complete or partial loss of consciousness and/or reduced mental ability.Footnote 15 Sweating is not a good indicator, as there are two types of heat stroke: Source: Canadian Centre for Occupational Health and Safety, 2005.Footnote 39. If any symptoms of heat illness are present (such as dizziness or fainting, nausea or vomiting, headache, rapid breathing and heartbeat, or extreme thirst), immediately move to a cool place and drink liquids. Symptoms include temporary dizziness and fainting resulting from an insufficient flow of blood to the brain while a person is standing. Drink "before you feel thirsty" - Many people, especially older adults, may be in a state of chronic dehydration because of a reduced ability to feel thirst, the body's reduced ability to react to dehydration and concern over frequent urination.Footnote 26 Footnote 27 By the time a person feels thirst, they have already lost about 2% of their body water and dehydration has occurred.Footnote 91 One method of reminding people to drink water is by advising them to leave a colourful glass by the sink and to drink from it after every hand washing.Footnote 92, Volume of water - Individuals should take personal responsibility for keeping hydrated.Footnote 93 People gain water from food and liquid intake, and lose water through urination, sweating and normal metabolic processes. This is because both the media and the public are less likely to get interested and involved in heat-health issues. Community factors that can increase the likelihood of heat exposure or affect the risk associated with it may includeFootnote 16 Footnote 17 : Individual factors that can increase the likelihood of heat exposure or the risk associated with it may include: Heat sensitivity is increased for those who are not regularly exposed to hot environments.Footnote 21,Footnote 22 Extreme heat events early in the summer generally result in higher mortality and morbidity than those later in the season.Footnote 21 This "acclimatization" is due to physiological adaptation in both cardiovascular and sweating systems.Footnote 23 Furthermore, the body's ability to acclimatize may be limited for some, such as those with heart disease,Footnote 24,Footnote 25 older adultsFootnote 25 and young children, who are also considered to be heat-vulnerable.Footnote 25. Evaluation of the Education Campaign on Health Risks Associated with Heat Waves and on Related Protection Measures. The timing of communication activities is critical. Sun safety - If sun exposure is unavoidable, recommend the use of a sunscreen lotion that is SPF 15 or higher and that users follow the manufacturer's directions for safe use.Footnote 116 Remind your audience that sunscreen and insect repellents can be safely used together, and that they should apply the sunscreen first, then the insect repellent. Stay alert for symptoms of heat illness. People who work in the heat - Some work environments expose people to higher heat-health risks. J. For example, this guidance states that employees with disabilities that put them at high risk for complications may request telework as a reasonable accommodation to reduce their chances of infection during a pandemic. There are three main types of evaluation: To evaluate programs, campaign leaders may use informal feedback from stakeholders and target audiences, as well as their own observations from past experiences. community leaders in places of worship), gathering places familiar to most residents, capacity to go door-to-door to disseminate information (in some communities), high numbers of volunteers to help get the messages out, postings on bulletin boards in public places, community and group events (e.g. ultraviolet radiation, air quality, infectious diseases, physical activity, green city and energy-use reduction campaigns). The message is consistent with other health promotional materials (e.g. Assessment of Vulnerability to the Health Impacts of Extreme Heat in Winnipeg and Melita. Rev. Health Canada, Ottawa, ON, 47. (1998). (2007). The most vulnerable persons during extreme heat are: â¢ heart disease; J. Appl. â¢ mental illnesses (such as, depression) Environ. Surveillance, 2, 143. When community organizations are engaged, they can often bring additional resources to the table along with knowledge of the target audiences and their needs. J. Physiol. (2005). Eating Well with Canada's Food Guide. Vassallo, M., Gera, K. N. and Allen, S. (1995). The message uses incentives effectively (more than one type of incentive is used; the audience cares about the incentives presented; the audience thinks the incentives are serious and action is likely to be taken). Symptoms may include heavy sweating, weakness, dizziness, nausea, headache, diarrhea and muscle cramps.
Safe Cooling Limits from Exercise-Induced Hyperthermia. Climate modelling and a social vulnerability index consisting of age, poverty, social isolation and education indices were used in prediction models (Box 1). Retrieved December 18, 2009, from http://www.thcu.ca/. The Effects of Drugs on Thermoregulation. Good evidence for threats and benefits is provided. Services. //create share box
Watch for symptoms of heat illness, which include: If you experience any of these symptoms during extreme heat, immediately move to a cool place and drink liquids. Med., 22, 221- 227. Don't apply sunscreen to a child less than 6 months old. Small towns and rural communities are home to many heat-vulnerable individuals, including older adults whose numbers are growing rapidly in rural regions. Frequently visit neighbours, friends and older family members, especially those who are chronically ill, to make sure that they are cool and hydrated.
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