diff --git a/main.c b/main.c
index 3a27dc8..166f308 100644
--- a/main.c
+++ b/main.c
@@ -3,6 +3,7 @@
 #include <stddef.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 #include "./philos.h"
 #include "./data.h"
 #include "./parsing.h"
@@ -70,8 +71,19 @@ void	*check_routine(t_data *data)
 				stop(data);
 				return (NULL);
 			}
+			pthread_mutex_lock(&philo->last_sleep_mutex);
+			// printf("time=%zu, last_sleep=%zu, life_expectency=%zu\n", get_time(), philo->last_sleep, data->life_expectency);
+			ok = !(philo->last_sleep + data->life_expectency > get_time());
+			pthread_mutex_unlock(&philo->last_sleep_mutex);
+			if (ok == 1)
+			{
+				print_died(philo);
+				stop(data);
+				return (NULL);
+			}
 			i++;
 		}
+		usleep(100);
 	}
 }