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The Science Behind Photobiomodulation: Can Light Really Make Hair Grow?

Around the world, 40% of men display visible hair thinning by age 35. The same is true for women, but by age 40. This can be caused from a wide range of factors: anything from poor diet to a natural hair loss caused by advancing age. For the millions of people facing thinning hair, solutions may feel elusive and impossible. However, recent technology has emerged that show promise at combatting this problem by encouraging regrowth using nothing but red and near-infrared light. Known as low-level laser therapy, LLLT has made significant progress in the last 2 decades, rapidly moving from a laboratory experiment to a consumer-grade product. But does it actually work? The Premise The premise of LLLT is based on a well known phenomenon called photobiomodulation. The science is simple. Inside the mitochondrial membrane of hair follicles, we can find a specific type of enzyme called cytochrome c oxidase. Also known as Complex IV, it accepts electrons from cytochrome c and reduces mol...

The challenges and benefits of autonomous vehicles


The challenges and benefits of autonomous vehicles



Autonomous vehicles, also known as self-driving cars, are vehicles that can operate without human intervention. They use a combination of sensors, cameras, and machine learning algorithms to navigate roads and make driving decisions. While there are many potential benefits to autonomous vehicles, there are also several challenges that must be addressed.

Benefits of Autonomous Vehicles

Autonomous vehicles offer many significant societal benefits. Some of these benefits include:

  • Enhanced Mobility: Autonomous vehicles can enhance the mobility of those who lack it, such as the elderly or disabled
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  • Transformed Urban Spaces: Autonomous vehicles have the potential to transform urban spaces by reducing the need for parking and freeing up space for other uses
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  • Environmental Benefits: Autonomous vehicles can support the environment by reducing emissions and improving fuel efficiency
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  • Improved Safety: Autonomous vehicles have the potential to reduce accidents caused by human error, such as distracted driving or drunk driving
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Challenges of Autonomous Vehicles

While there are many potential benefits to autonomous vehicles, there are also several challenges that must be addressed. Some of these challenges include:

  • Decisional Limitations: Autonomous vehicles lack certain decisional capacities, such as the ability to annotate and categorize the driving environment in terms of human values and moral understanding
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     This can lead to potential risks in terms of driving decisions.
  • Cost: Autonomous vehicles can be expensive to develop and manufacture, which can make them less accessible to the general public
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  • Reliability: Autonomous vehicles must be reliable and safe in order to gain public trust. This requires extensive testing and validation, which can be time-consuming and expensive
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  • Cybersecurity: Autonomous vehicles are vulnerable to cyber attacks, which can compromise their safety and security
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Going Slow and Starting Small

One approach to addressing the challenges of autonomous vehicles is to start small and go slow. This means focusing on developing autonomous vehicles for specific use cases, such as campus shuttles or delivery vehicles, before scaling up to more complex use cases

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. This approach allows for more testing and validation, which can help to build public trust in the technology.

Conclusion

Autonomous vehicles offer many potential benefits, including enhanced mobility, transformed urban spaces, environmental benefits, and improved safety. However, there are also several challenges that must be addressed, such as decisional limitations, cost, reliability, and cybersecurity. By starting small and going slow, developers can address these challenges and build public trust in the technology.


Citations:

[1] https://www.tandfonline.com/doi/full/10.1080/08839514.2019.1600301

[2] https://spectrum.ieee.org/autonomous-vehicles-should-start-small-go-slow

[3] https://www.ucsusa.org/resources/self-driving-cars-101

[4] https://www.rand.org/content/dam/rand/pubs/research_reports/RR1400/RR1478/RAND_RR1478.pdf

[5] https://www.mckinsey.com/industries/automotive-and-assembly/our-insights/from-sci-fi-to-reality-autonomous-driving-in-china

[6] https://www.sciencedirect.com/science/article/pii/S2590198221002098

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