Millions of name-brand household items have been recalled due to safety concerns, and many of these recalled products could have ignited a blaze similar to the one that devastated Chicago two weeks ago.

According to the Chicago Tribune, several popular household products were recalled this week from well-known stores such as Apple, Ikea, Michaels, and Goodman.

The most notable of these recalls is from Ikea, which was forced to send out an urgent notice to its customers after a fatal flaw was found in its HYBY and LOCK ceiling lamps. The plastic retaining clips that secure the lamp’s glass shade are prone to breaking, potentially leading to the glass shade falling to the floor and shattering.

There have already been 224 reports from all over the world of the lamps’ glass shades randomly falling due to issues with the plastic clips, resulting in 11 injuries. Approximately 840,000 lamps in the U.S. and 427,000 lamps in Canada have been recalled.

Apple was forced to recall almost one million travel adapter kits because of the possibility of shocks when consumers attempted to remove them from an outlet. And arts and crafts store Michaels recalled about 500,000 artificial poinsettias due to the threat of mold developing in their stems and bushes.

While all of these recalls are quite frightening, Chicago residents may be particularly interested in the thousands of air conditioners being recalled due to fire hazard concerns.

As NBC Chicago reported, a massive fire tore through Buyer’s Flea Market in the West Humboldt Park neighborhood on March 8, causing millions of dollars in damage. Fire officials now believe that the fire may have been caused by an electrical issue in a vendor’s booth.

Some of the recalled air conditioners, which were sold at Goodman and other wholesale HVAC stores around the country, can spontaneously combust due to overheating. There have already been 10 reports of the air conditioners catching fire, including four incidents that caused major property damage.

About two-thirds of all U.S. homes have air conditioners, so people in Chicago and elsewhere will want to check and make sure that their AC has not been recalled. The units that caught fire were manufactured by Packaged Terminal Air Conditioners and Heat Pumps (PTAC).

The recalled air conditioners have a beige power cord labeled with a four-digit date code ending in “06” or “07.” The recall affects about 5,300 units in the U.S., not including an additional 233,500 PTAC units that were recalled in Aug. 2014 for the same issue.

Chicago cannot handle another serious fire, so residents are strongly encouraged to double-check their AC unit and other household products that may have been recalled.

Federal regulators from the U.S. Centers for Disease Control and Prevention announced on Tuesday that doctors must be more cautious when prescribing painkillers. In an attempt to decrease the epidemic of deaths related to narcotics overdose, the CDC encouraged doctors to recommend to their patients physical therapy and over-the-counter medications before prescribing opioids to treat chronic pain.

The CDC is now urging physicians to use non-narcotic drugs in most cases, with the exception of cancer treatment. For patients undergoing palliative and end-of-life care, they recommend only issuing the lowest effective dose of opioids. All other cases, they say, should first be treated without the use of narcotics.

“Overprescribing opioids — largely for chronic pain — is a key driver of America’s drug-overdose epidemic,” said CDC Director Tom Frieden as he made his announcement. “The guideline will give physicians and patients the information they need to make more informed decisions about treatment.”

Critics of these strict guidelines are concerned that this will block patient access to medications. The American Medical Association fears that patients will be directed toward pain treatments that are not covered by insurance. Those in favor of the guidelines believe that this is a positive first step to decreasing widespread narcotics abuse and addiction.

A recent report indicates that over 1.5 billion people worldwide suffer from chronic pain. Since 1999, sales of opium-based painkillers have quadrupled, and in 2014, doctors wrote almost 200 million prescriptions for these drugs in the United States. Meanwhile, nearly 19,000 people have died as a result of opioid-related drug use.

“Used appropriately, opioids are an important tool in treating pain,” stated Dr. Asokumar Buvanendran of the Rush Pain Center in Chicago. “But there are very many safe, non-pharmacological and non-opioid pharmacalogical therapies proven to be as or more effective than opioids that don’t carry the risk of dependence.”

Dr. Buvanendran encourages physicians to educate themselves about the alternatives, such as spinal cord stimulation and epidural injections.

Depression and mental illness don’t discriminate. All over Chicago, adults and teens are experimenting with new programs to help Chicago teens overcome the challenges in their lives.

At Maria Catalyst High School, a new modeling workshop for aspiring young models is teaching these girls about more than just fashion. YK Management: The Workshop program is teaching valuable self-confidence and body positivity to students in the hopes that it will help boost their self-esteem.

Yoshimi Kiosha, 26, is already bringing the intensive, four-week program to South Shore and Dunbar, and hopes to expand it to high schools all over Chicago. Through the after-school program, Kiosha teaches teens about the modeling industry, runway techniques and interview skills, and brings in professional stylists and makeup artists to teach the girls to look and feel their best.

“I used to see myself as fat, and I always thought fat was unhealthy,” said Elizabeth, one of the girls in the Maria Catalyst High School program. “She explained that being bigger than the petite models doesn’t mean that you’re not healthy.”

At the same time, Morehouse College graduate Corey Hardiman is trying to spread his own message of hope among Chicago’s young men. Every spring break, Hardiman and 16 other “Hope Dealers” travel to Chicago’s South Side to speak to young men about getting into college.

“I believe in the philosophy if I don’t see it, I can’t become it, but if I do see it, I have a vision in mind,” Hardiman told DNA Info Chicago. “Hope Dealers is a two-fold thing. It’s to get students politically engaged, educationally inspired, and to challenge the social quota, defying the [black male] stereotype.”

Every day, about 1,400 young people will make a suicide attempt. Teenagers who suffer from depression are 12 times more likely to do so.

Holy Trinity Catholic High School freshman Jonathan Vega, 15, and Jelani Jackson, 14, recently won a competition for their app idea. After some of the teens’ classmates committed suicide, Vega and Jackson participated in the international “World Series of Innovation” competition, winning praise for their app idea.

The Aegis is an app and bracelet that would act as an early warning system if someone is at risk of extreme behavior. One day, the teens hope to put the idea into practice, helping more teens struggling with mental illness to reach adulthood.

The city of Chicago is going through an interesting phase of public transportation changes, and it’s all thanks to Uber.

Chicago officials were supposed to launch a program on Jan. 29 this year that officially required all of the city’s 12,700 licensed cab drivers to connect to one of two “ride-hailing apps,” according to the Chicago Tribune. These two mobile apps, Arro and Curb, are part of a bigger “Chicabs” app program which was designed as a way to “help taxi companies claw back a customer base” that has increasingly turned to Uber or Lyft ride services.

The only tiny problem was that the city missed its own deadline. Many taxi drivers have not been keen on signing up for the program, but they have admitted that it’s a small step toward securing taxi company jobs.

As Crain’s Chicago Business reported, the ride-sharing services Uber and Lyft have caused taxi medallions to plummet in value. The average price of a taxi medallion in Chicago in 2014 was around $325,000, but this dropped to $229,000 in 2015.

As the city’s taxi industry fumbles, Uber has been making several changes to improve its services. ChicagoInno recently reported that Uber made adjustments to the way that passengers can choose their rides. Two services offered by Uber, uberPOOL and uberX, have been redesigned within the Uber app to allow passengers to request a “shared ride” or “your own car,” and estimated price differences are displayed together.

As many app developers will attest, even small changes can make a big difference in customer engagement. The majority of mobile app developers make improvements to an app at least twice a year, and many of these improvements focus on simple big fixes or changes for ease of accessibility.

Although Uber isn’t just focused on the city of Chicago, the company has made it clear that it sees a strong demand for its services and intends to continue growing — regardless of what the city’s taxi industry is doing.

“I-90 currently owns the title of the ‘nation’s worst bottleneck,’ costing residents 16.9 million hours of wasted time and a staggering $418 million in lost productivity per year,” said the company in a statement last year. “When it comes to cutting congestion and pollution in Chicago, technology is an important part of the solution.”

Startup competitions like the annual TechCrunch Disrupt in San Francisco have become high-profile incubators for nascent technology companies, separating the tech wannabes from the “unicorns” in the making. This April, five Chicago startups will head to Qingdao, China to compete in the Sino-US Innovation and Entrepreneurship Competition, which connects U.S. startups with Chinese investors.

A maximum of 20 U.S. companies and university teams will compete in the international competition, and already five startups from the Chicago area have been selected as finalists. Local startups Reliefwatch, Tovala, RiMO Therapeutics, Audiovert, and NETenergy received a paid trip to China after winning a regional competition held on Tuesday, Feb. 29 at the Chicago Innovation Exchange in Hyde Park.

In addition to 30 Chinese teams, participants from the University of Maryland, Virginia Tech, and San Jose State University will also compete. In April, the finalists will compete for $100,000 in prizes to help fund their ideas.

Startup competitions are just one of the new financing options entrepreneurs can use to get their idea off the ground. For instance, Audiovert, a finalist from Northwestern, raised $3,900 for its music tech startup on the crowdfunding site Indiegogo. RiMO Therapeutics, one of the other local finalists, was recently awarded $250,000 from the UChicago Innovation Fund.

Then there are organizations like Techstars, a global startup accelerator with a program in Chicago. Built in Chicago recently reported that Techstars Chicago graduate Infiniscene just raised $1.8 million for its cloud-based video game broadcasting service.

In the U.S., a quarter of all new businesses fail in their first year, while half will fail by their fourth year in business. Startup accelerators, competitions, and crowdfunding campaigns offer new ways for startups to raise capital in those crucial early years.

In the tech world, startups that go on to achieve a billion-dollar valuation are known as unicorns. Companies like Airbnb, Uber, Snapchat, and Pinterest are notable examples of this phenomenon. It’s an ambitious goal in a cutthroat industry, one that prizes innovation at all costs.

Yet because many of these startups are attempting to innovate on existing business models, that can make it difficult to perform traditional market research like benchmarking analysis. How do you compare your startup’s business model to the competition when there is no competition?

While there are more ways than ever for Chicago tech startups to raise capital, Infiniscene founder Stu Grubbs told Built in Chicago that ultimately, it’s old fashioned hard work that pays off in the end:

“Grubbs attributes much of the company’s success to its Midwestern work ethic, and the team’s passion for what they do. At Techstars, he said they got a reputation for coming in first and leaving last every day — including weekends.”

Proponents of electromagnetic field (EMF) protection have long warned of the potential negative effects things like cellphones and wireless internet can have on a person’s body, but the scientific community remains somewhat ambiguous with not a lot of concrete evidence to support either side. In fact, even the two to six billion cell phone users worldwide don’t realize the dangers that these technologies and electromagnetic fields can hold. However, a recent study from researchers at the University of Texas at Dallas is shedding some new light on the subject, specifically as it pertains to amputee victims.

According to a press release published by eurekalert.org, the study was published in last month’s PLOS ONE academic journal and revealed tangible evidence that supports what many amputees have reported in anecdotal cases for some time.

Retired Maj. David Underwood is one of those amputees and part of the reason behind the study coming about. Although there is little indication that the majority of cell phone users are aware of dangers EMFs poise, Underwood was able to identify warning signs after exposure.

“When roaming on a cellphone in the car kicked in, the pain almost felt like having my arm blown off again,” said Underwood, an Iraq War veteran who was injured by an improvised explosive device (IED). “I didn’t notice the power lines, cellphones on roam or other electromagnetic fields until I first felt them in my arm.”

Dr. Mario Romero-Ortega, senior author of the study and an associate professor of bioengineering in the University’s Erik Jonsson School of Engineering and Computer Science, became interested in the phenomenon after speaking with Underwood. According to the instructions available on http://hesca.net/soma/, Soma is prescribed for the treatment of acute muscle cramps and pain relief. As a patient with hypotension, I had to be particularly careful during the treatment since Soma can reduce the blood pressure even more. Until now there had been virtually no previous research done into how EMFs may affect people with preexisting injuries.

“Our study provides evidence, for the first time, that subjects exposed to cellphone towers at low, regular levels can actually perceive pain,” said Romero-Ortega. “Our study also points to a specific nerve pathway that may contribute to our main finding.”

The study, which was performed on rats, found that subjects who had some sort of nerve-injury and were exposed to EMFs exhibited behavioral pain response, as opposed to the control group which overall did not. For complete details of the study check out the University’s own summary here.