introduction
-Modern technology is the improved or developed product of the technology made in the past.
-since the beginning of the 20th century. modern technology has rapidly changed our world. It improves the length and quality of life. Although modern technology brings an enormous number of benefits for mankind. It causes many harmful effects as well.
- It affects our lives whether for information, communication, and development. Whether we like it or not, modern technology has been integrated into society and our personal lives. We are surrounded by smart machines and tools cars, televisions, Smartphone's, the Internet, e-commerce sites and so on.

Summary
Positive effects
Communication
-Back then, people were only able to send letters through mails, which we now call "snail mails", in order for them to send messages to their loved ones far away from home. In this modern era, we can now connect easily with our families and friends using cellphonesby sending them messages through e-mail, SMS or social networking sites.
Travelling
In the old age, transportation were only limited to horses and ships that took them days before they arrive in their respective destinations. modern transports like cars, airplanes and trains allow us to travel comfortably and quickly to our destinations all over the world.
Television
In ancient time, televisions are usually in optical screens, black and white images, few channels, and with an antenna attach to their back. But today’s television are much different. They really appear in liquid crystal display and plasma display, with great sound systems and in flat screens for a clearer vision.
Physical activites
Nowadays, we prefer to run in the treadmill than go outside for our exercise because its much easier. Another example of this is exergames. An example of this is Kinect for xbox 360. It uses a camera and detects your motion and you can use that play games like the app Kinect Sports (bowling, soccer, ping pong, track & field, boxing and volleyball).

Housing and lifestyle
Most of the items in our house are now automated, for example, doors use finger prints which guarantee security. Remote webcams which you can use to monitor what goes on at your home. Before, people would cook food on firestones. But now, they cook food on electric or gas stoves.
Negative effects
Expensiveness and energy consumption technology also creates financial problems in families because most technologies are very expensive to buy like the computers, televisions and refrigerators. People who cannot afford to buy this kind of technology have to do everything the old fashioned way, which is time consuming. . Electronics require more electricity, which means we are consuming more energy, and it needs a lot of money.

Obesity
If we spend more time sitting in front of the TV or computer, we spend less time outside running around and burning off calories -- and energy, this can lead to significant weight gain.

Poor sleeping habits
Some people tend to stay up late just to have a late night text messaging or staying online on social medias. Many researchers have shown that people who are not getting enough sleep can cause death.

Loss of Hearing and Eyesight
Using headphones and ear buds can cause people to lose their hearing over time. Likewise, straining your eyes looking at computer and device screens can cause people to need glasses much earlier in life.

Laziness
The more time we spend playing video games with our friends, the less we go outside to exercise, spend time with real people, or see and do new things.