Issue #17

This structured review examines Finnish observational cohort studies linking frequent sauna use to lower all-cause mortality, while critically analyzing whether the association holds after controlling for the healthy lifestyle habits of frequent sauna users. The author concludes that the association is real and robust but that the observational design cannot cleanly separate sauna's independent effect from confounding lifestyle factors.

The article reviews the scientific literature on combining creatine supplementation with heat exposure, including sauna use, finding that controlled trials and a systematic review of athletes exercising in heat do not support the widely repeated claim that creatine causes dehydration or increases heat-illness risk. Standard hydration precautions still apply to all sauna users regardless of supplementation status.

This evidence review separates well-documented physiological effects of post-training sauna use, such as cardiovascular responses tracked in Finnish cohorts, from less-supported claims about direct muscle recovery and performance enhancement still awaiting stronger sports-science evidence. The article also outlines the temperature, duration, and hydration protocols researchers have used and identifies the safety limits most relevant to exercisers.

Social wellness clubs and event promoters across the United States are packaging group sauna sessions and cold plunges as alternatives to traditional happy-hour gatherings, creating a new category of recovery-focused social experiences. Gyms, boutique studios, and hospitality operators are responding to consumer demand by building out contrast therapy programming designed specifically for group participation.

NBA star Steph Curry describes sauna use as his most essential recovery tool at age 38, citing it as central to managing the physical demands of a professional basketball career. The profile reflects a broader trend of elite athletes adopting sauna as a core component of their recovery and longevity routines.

This guide covers the science-backed benefits of sauna and cold plunge therapy, FDA and CDC safety standards relevant to heat and cold exposure, and what consumers can expect in terms of costs and insurance coverage. It is written by a board-certified physician and addresses both the physiological mechanisms and practical considerations for mainstream users.

US Customs and Border Protection spent four days investigating Auckland-based timber processor Hermpac after a complaint from the US Lumber Coalition revealed that a US east-coast wholesaler had been routing Canadian-origin wood through New Zealand to avoid punishing duties on Canadian softwood lumber. The case marks the first confirmed instance of a New Zealand processor being directly investigated under the current US tariff regime, signaling that enforcement of lumber origin rules is intensifying beyond North American borders.

The long-running US-Canada softwood lumber dispute is expanding beyond Canadian sawmills, with West Fraser facing a fresh US duty review and a separate customs investigation into Canadian western red cedar processed in New Zealand bringing trade routes and rules of origin under closer regulatory scrutiny. The developments signal that the dispute's enforcement perimeter is widening in ways that will affect how cedar and other softwoods move through global supply chains.

The National Lumber and Building Material Dealers Association has urged congressional leaders and the Trump Administration to provide targeted relief from Section 338 tariffs on Canadian building materials, arguing that domestic production is insufficient to meet US demand for several essential products. The letter highlights growing cost and supply pressures on lumber dealers and their customers as tariff uncertainty continues to weigh on the industry.

The Canadian government has extended a $30 million loan to Conifex Timber Inc. in Mackenzie, British Columbia, through the Loan and Export Trade Loan facility to help the company manage financial pressure stemming from US tariffs on Canadian lumber exports. The assistance underscores the operational strain that ongoing trade disputes are placing on British Columbia's forest sector, a key source of western red cedar used in sauna construction.

Lumber futures fell to approximately $530 per thousand board feet, near their lowest level in nine months, as mortgage rates climbing above 7% weigh on housing demand and constrain downstream lumber consumption. Canadian counter-tariffs of 25% on US lumber and 50% on plywood are adding further complexity to North American wood product pricing.

CME lumber futures closed the week at $537 per thousand board feet, the lowest close since January, down 5.6% from the prior week on daily turnover that ran nearly 48% below the 12-week baseline. The contract now sits 18.5% below its 52-week high of $659 set in July, with four consecutive daily declines and the steepest single-session drop of the week occurring on Friday.

The US lumber market is heading into its slowest seasonal months with mortgage rates near 7%, declining permits for future single-family construction, and mills yet to make convincing production cuts, leaving prices under sustained downward pressure. Analysts at GWMI expect the market to remain weak through the end of 2026, with any early-2027 recovery contingent on meaningful supply reduction before spring buying activity returns.

This analysis explains how Section 232 tariffs on imported steel and aluminum translate into higher line-item costs for construction projects, affecting everything from rebar and structural steel to window packages and hardware. It outlines why tariff-driven price increases move quickly from import point to job site and what procurement strategies builders use to mitigate the impact.

The American Iron and Steel Institute, the Steel Manufacturers Association, and three other major trade organizations sent a letter to President Trump urging the Administration to maintain Section 232 tariffs on steel and steel derivative products, warning that weakening them would put domestic steelmaking progress at risk. The letter reflects continued industry pressure to keep elevated tariffs in place as trade negotiations evolve.

A Progressive Policy Institute analysis finds that Section 232 tariffs on steel and aluminum have created a condition of manufactured scarcity, with US steel prices reaching $1,208 per tonne by June 2026 compared to a global average of $490 per tonne. Despite the tariffs, domestic steel output has barely moved above pre-tariff levels while apparent consumption has fallen, raising concerns about the policy's impact on downstream manufacturing and construction costs.

Late-September freight market signals show domestic truckload conditions have stabilized since summer but remain at an elevated cost floor, with Old Dominion Freight Line announcing a 4.9% general rate increase effective October 5 and diesel prices continuing to amplify all-in shipping costs. Tight truckload capacity, firm LTL pricing, and high fuel costs point to limited cost relief for shippers heading into Q4 2026.

DAT One load posts totaled 2.9 million for the week of September 13–19, up 16% from the prior week, as freight activity returned to a normal cadence after Labor Day, with all-in rates rising across all three equipment types. The national average on-highway diesel price reached a record above $6.28 per gallon for the week ending September 14, with diesel accounting for more than the entire rate increase in dry van and flatbed freight.

Sauna for All launched the Public Sauna-Bathing Charter at the XIX International Sauna Congress in Oslo, establishing ten principles for how public saunas should be priced, operated, and funded as social infrastructure rather than luxury amenities. Twenty-seven operators across four countries have signed the voluntary charter so far, including one US-based operator, with the charter explicitly rejecting any effort to standardize sauna traditions across cultures.

The Aufguss World Masters is a five-day international competition held at Satama spa resort in Germany where competitors perform elaborate 15-minute sauna rituals combining scent, music, and towel-wafting to tell a story, with contestants spending a year developing their routines before qualifying. The article offers an immersive first-person account of the competition's culture, scale, and the global community of Aufguss practitioners who treat the discipline as a serious performance art.

The Seattle Sauna Festival will return to the National Nordic Museum in Ballard on November 7 and 8, 2026, bringing together multiple sauna companies from across the Pacific Northwest alongside cold plunges, live music, cultural performances, and Nordic-inspired food and drink. The festival, which debuted in 2025, is organized by Ryan M. Davis and Ana Hernandez, whose family-run mobile sauna business helped inspire the regional gathering.

Professional fire performer and storyteller Aidan Ring is touring Ireland with a show called Scéalta Ón Sorn — Stories from the Stove, designed specifically for sauna audiences and drawing on Ireland's ancient sweat house tradition known as teach allais. The outdoor performances combine Irish mythology with fire performance and take place after sunset at sauna venues across multiple Irish counties.

Researchers from nine countries gathered in Oslo for the 1st International Heat Therapy Research Symposium, convened by the US-based Sauna Research Foundation, to open a formal Delphi consensus process aimed at establishing shared definitions, standardized terminology, and methodological reporting standards for sauna and heat therapy research. The meeting responds to a decade of rapid but methodologically inconsistent research growth and marks the inaugural in-person gathering of the Sauna Research Foundation.