Day trading, also known as intraday trading, is a heavily-followed trading style embraced by those who aim to capitalize on the small price fluctuations occurring over a single day. It is a challenging endeavor, but with suitable knowledge, skill, and mindset, it can also be an exceedingly rewarding one.

Intraday traders actively involve themselves in buying and selling securities—shares, futures contracts, forex pairs, among others— within the same day, aiming to profit from the intricate financial market movements. They typically don’t hold positions overnight, narrowing their exposure to unforeseen market risks.

A clear understanding of financial markets is required in day trading. This embraces the knowledge of market trends, trading indicators, and technical analysis. An ability to make quick decisions, a robust risk management strategy, and a capacity to handle stress are additional demands that can make or break a day trader.

Besides, a day trader must have a high-quality trading platform since it offers the tools and features needed to conduct trades swiftly. These tools typically include advanced charting, trading algorithms, and a rapid order execution system. Some even provide demo accounts to practice trading strategies without risking real money, which can be incredibly beneficial for beginners.

Undoubtedly, one of the most vital aspects of day trading is honing a solid trading plan. This should detail the trading strategy, risk tolerance levels, profit targets, and stop-loss measures. Sticking to this plan, despite of market conditions, helps to maintain discipline and minimize losses.

Despite all the challenges, the proper strategies can turn day trading into a profitable business venture. However, it needs continuous learning, patience, and a robust determination to succeed.

In conclusion, always remember that day trading does not guarantee returns. It carries considerable financial risk, so trade wisely. Never invest more than you can afford to lose, and always pursue professional advice before day trading stepping into the complex world of day trading. You may also want to consider other types of trading, such as swing or position trading, that are less stressful and require less time investment.

In the domain of day trading, knowledge, skill, and discipline are key. Whether you're a seasoned trader looking to switch trading styles or a novice learning the ropes, the world of day trading awaits with its endless opportunities for risks and profit. However, with the right tools and mindset, you may unlock its potential and reach your financial goals.