Day trading, also termed as intraday trading) is a heavily-followed trading style adopted by those who desire to capitalize on the brief price fluctuations occurring over a single day. It is a challenging endeavor, but with adequate knowledge, skill, and mindset, it can also be trade the day a profitable one.

Day traders actively engage in buying and selling securities—shares, futures contracts, forex pairs, among others— within the same day, striving to profit from the sophisticated financial market movements. They typically don’t hold positions overnight, reducing their exposure to unforeseen market risks.

An in-depth knowledge of the financial markets is required in day trading. This includes the knowledge of market movements, trading indicators, and technical analysis. An ability to make quick decisions, a strong risk management strategy, and a capability to handle stress are additional demands that can make or break a day trader.

Furthermore, a day trader must have a good trading platform for it provides the tools and features needed to conduct trades swiftly. These types of tools typically include advanced charting, trading algorithms, and a fast order execution system. Some even provide demo accounts to practice trading strategies without risking real money, which can be exceedingly beneficial for beginners.

No doubt, one of the most crucial aspects of day trading is developing a solid trading plan. This should detail the trading strategy, risk tolerance levels, profit targets, and stop-loss measures. Sticking to this plan, regardless of market conditions, helps to keep discipline and minimize losses.

In spite of all the challenges, the correct strategies can convert day trading into a profitable business venture. It requires continuous learning, patience, and a strong determination to succeed.

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

In the world of day trading, knowledge, skill, and discipline are key. Whether you're a experienced trader looking to switch trading styles or a novice learning the ropes, the world of day trading awaits with its endless opportunities for risk and rewards. However, with the right tools and mindset, you might unlock its potential and achieve your financial goals.